Jupiter
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B2 noun /ˈdʒuː.pɪ.tər/

Jupiter

木星; 罗马神话中的主神
Meaning
the largest planet in our solar system; the chief god of Roman mythology
Example
Jupiter is known for its massive size and distinctive red spot.
朱庇特因其巨大的体积和独特的红斑而闻名。
C1 adjective /ˈdʒɑː.rɪŋ/

jarring

刺耳的，震惊的
Meaning
Striking or shocking in a way that creates a strong contrast or clash.
Example
The sudden loud noise was jarring to everyone in the room.
突然的响亮噪音让房间里每个人都感到震惊。
B2 adjective /ˈdʒʌm.boʊ/

Jumbo

极其大; 巨大
Meaning
exceptionally large; enormous; gigantic
Example
The jumbo jet was delayed at the airport.
巨型喷气机在机场延误。
C1 noun /ˈdʒʊərər/

juror

陪审员
Meaning
a member of a jury who is chosen to hear evidence in a legal case and help make a decision
Example
The juror listened carefully to the witness’s testimony.
陪审员仔细听取了证人的证词。
C1 noun /ˈdʒʌŋk.tʃər/

Juncture

关键时刻
Meaning
a particular point in events or time; a critical moment when important decisions must be made
Example
At this juncture, we need to make a crucial decision about our future.
在这个关键时刻，我们需要做出关于未来的重要决策。
C1 verb /ˈdʒɪtər/

jitter

颤抖
Meaning
to shake or tremble slightly, often from fear, nervousness, or excitement
Example
He began to jitter nervously before giving his speech.
他在发表演讲前开始紧张地发抖。
B2 noun /dʒʌŋk/

Junk

垃圾; 废品
Meaning
old or discarded articles that are considered useless or of little value; things of poor quality
Example
He cleaned out the garage and threw away all the old junk.
他清理了车库，扔掉了所有旧的垃圾。
C1 adjective /dʒuːˈdɪʃ.əl/

judicial

司法的
Meaning
relating to judges, courts, or the administration of justice
Example
The new law faced strong judicial review before implementation.
新法律在实施前接受了严格的司法审查。
C1 adjective /ˈdʒuː.bɪ.lənt/

jubilant

欢欣鼓舞
Meaning
feeling or expressing great happiness and joy
Example
The team was jubilant after winning the championship.
球队在赢得冠军后欢欣鼓舞。
A2 adjective /ˌdʒæpəˈniːz/

japanese

日语
Meaning
relating to Japan, its people, or their language
Example
She loves Japanese culture and traditions.
她喜欢日本的文化和传统。
B2 noun /dʒɜːrk/

Jerk

震动；推撞；傻人
Meaning
a quick, sharp, sudden movement; an abrupt pull or twist; a foolish person
Example
The sudden jerk of the train caused passengers to lose their balance momentarily.
火车的突然震动使乘客暂时失去了平衡。
B1 noun /dʒʌɡ/

Jug

水壶
Meaning
a large container for liquids, with a narrow mouth and a handle
Example
She poured fresh orange juice from the glass jug into her cup.
她把新鲜的橙汁从玻璃水壶倒进了她的杯子里。
C1 verb /dʒəʊlt/

jolt

震动
Meaning
to push or shake someone or something abruptly and roughly
Example
The sudden stop jolted all the passengers forward.
突然停车把所有乘客都推到了前面。
C2 noun /ˌdʒʊərɪsˈpruːdəns/

jurisprudence

法学
Meaning
The theory, philosophy, or science of law.
Example
She is a professor of jurisprudence at the university.
她是大学里的法学教授。
A2 noun /ˈdʒel.i/

Jelly

果冻
Meaning
a sweet soft food made from fruit juice and sugar; a semi-solid substance with a jelly-like consistency
Example
She spread grape jelly on her toast for breakfast.
她在早餐时把葡萄果冻涂在吐司上。
A1 adjective /dʒʌst/

Just

公正的; 正义的; 适当的
Meaning
fair; righteous; morally right; appropriate
Example
The judge made a just decision in the case.
法官在案件中作出了公正的决定。
A2 noun /ˈdʒɜːr.ni/

Journey

旅行
Meaning
an act of travelling from one place to another; a long and often difficult process of personal development
Example
Their journey across the country took three weeks to complete.
他们的旅行穿越整个国家，花了三周时间。
B2 noun /ˈdʒel.i fɪʃ/

Jelly fish

水母
Meaning
a soft-bodied marine animal with a gelatinous umbrella-shaped body and trailing tentacles
Example
The jellyfish floated gracefully through the water with its translucent body.
水母带着透明的身体优雅地漂浮在水中。
C2 noun /ˈdʒʌɡjələr/

jugular

颈静脉
Meaning
A large vein in the neck that carries blood from the head back to the heart.
Example
The doctor checked the patient's jugular vein for signs of pressure.
医生检查了病人的颈静脉，看是否有压力迹象。
B1 noun ˈdʒʌdʒ.mənt

judgment

判决，判断，裁决
Meaning
The ability to make considered decisions or come to sensible conclusions.
Example
The judge's judgment was fair and just.
法官的判决公正而公正。
C1 verb /ˈdʒɒsl/

jostle

推挤
Meaning
to push, elbow, or bump against someone roughly, typically in a crowd
Example
The fans jostled each other to get closer to the stage.
粉丝们推搡着彼此，以便靠近舞台。
C1 noun /ˌdʒʌkstəpəˈzɪʃən/

juxtaposition

并置
Meaning
The fact of two things being seen or placed close together with contrasting effect.
Example
The juxtaposition of light and dark colors created a dramatic effect.
明亮与暗色的并置创造了戏剧性的效果。
B2 noun /ˈdʒuːələr/

jeweller

珠宝商
Meaning
a person who makes, repairs, or sells jewelry
Example
The jeweller crafted a beautiful gold ring.
这位珠宝商制作了一枚漂亮的金戒指。
B2 noun /dʒɔɪnt/

Joint

关节; 共同
Meaning
a point at which parts of the body are connected; shared by two or more people
Example
The joint effort of the team led to the project's success.
团队的共同努力导致了项目的成功。
B2 noun /ˈdʒʌŋk.ʃən/

Junction

交叉口
Meaning
a place where two or more roads or railway lines meet; a point where things join or connect
Example
Turn left at the junction to reach the shopping center.
在交叉口左转，前往购物中心。
C1 noun /ˈdʒuː.və.naɪl/

Juvenile

青少年; 未成年
Meaning
a young person below the age of adult criminal responsibility; relating to young people
Example
The juvenile court handles cases involving young offenders under eighteen.
少年法庭处理涉及十八岁以下青少年犯罪者的案件。
C2 noun /ˈdʒɛtsəm/

jetsam

从船上丢弃的无用物品，被冲到岸上的物品
Meaning
Unwanted material or goods thrown overboard from a ship and washed ashore.
Example
The beach was littered with jetsam after the storm.
风暴过后，海滩上充满了杰特萨姆。
C1 noun /ˈdʒɔːn.dɪs/

jaundice

黄疸
Meaning
A medical condition in which the skin and eyes become yellow due to liver problems.
Example
The doctor diagnosed the baby with jaundice.
医生诊断出婴儿患有黄疸。
A2 noun /dʒæm/

Jam

由水果和糖制成的甜酱；一种困难的情况；一个堵塞
Meaning
a sweet spread made from fruit and sugar; a difficult situation; a blockage
Example
She spread strawberry jam on her toast for breakfast every morning.
她每天早上在烤面包上涂上草莓果酱作为早餐。
C1 verb /ˈdʒʌmbəl/

jumble

混合
Meaning
to mix things together in a confused or untidy way
Example
Don't jumble all the papers together in one pile.
不要把所有的文件混在一起。
C2 noun /ˈdʒɪŋɡoʊɪst/

jingoist

极端民族主义者
Meaning
a person who supports jingoism; an extreme nationalist with aggressive foreign policies
Example
He was labeled a jingoist for his extreme views.
由于他的极端观点，他被贴上了极端民族主义者的标签。
B2 noun /ˈdʒɜːr.nəl/

Journal

期刊
Meaning
a newspaper or magazine that deals with a particular subject; a daily record of events
Example
She kept a personal journal to record her thoughts and experiences.
她保持着个人日记，以记录她的想法和经历。
A1 noun /ˈdʒænjuˌɛri/

january

一月
Meaning
the first month of the year in the Gregorian calendar
Example
January is often the coldest month of the year.
一月通常是一年中最冷的月份。
C1 verb /ˈdʒepərdaɪz/

jeopardize

危及
Meaning
to put something at risk of being damaged or destroyed
Example
His reckless behavior could jeopardize his career.
他鲁莽的行为可能会危及他的职业生涯。
C1 noun /ˈdʒuː.bɪ.liː/

Jubilee

周年纪念; 特别庆典
Meaning
a special anniversary celebration, especially the 25th, 50th, or 60th anniversary of an important event
Example
The school celebrated its golden jubilee with a grand ceremony.
学校以盛大的仪式庆祝了它的金色周年纪念。
C2 noun /ˈdʒɒlɪti/

jollity

欢庆
Meaning
lively and cheerful activity or celebration
Example
The wedding was full of jollity and laughter.
婚礼充满了欢庆和笑声。
B1 noun /ˈdʒɜːrnəlɪst/

journalist

记者
Meaning
a person who writes news articles or reports for newspapers, magazines, or media
Example
The journalist covered the political event.
记者报道了政治事件。
B1 noun /dʒiːp/

jeep

吉普车
Meaning
a sturdy motor vehicle designed for rough terrain; a small military or civilian off-road vehicle
Example
The jeep climbed the rocky hill without difficulty.
吉普车轻松地爬上了崎岖的山坡。
B2 noun /ˈdʒɝː.nə.lɪŋ/

journaling

写日记
Meaning
The practice of writing down your thoughts, feelings, and experiences regularly.
Example
Journaling helps in organizing thoughts and reducing stress.
日记写作有助于整理思绪并减少压力。
C2 noun /ˈdʒɒs.stɪk/

Joss-stick

香炉棒
Meaning
a thin stick of incense that is burned for its pleasant smell, especially in religious ceremonies
Example
She lit a joss-stick in the temple during her prayers.
她在寺庙里点燃了一根香炉棒，进行祷告。
C2 noun /dʒæm/

jamb

门框
Meaning
The side post or surface of a doorway, window, or fireplace.
Example
The carpenter carefully measured the width of the door jamb.
木匠小心地测量了门框的宽度。
C1 noun /ˌdʒuː.bɪˈleɪ.ʃən/

jubilation

庆典
Meaning
a feeling or expression of great happiness and triumph
Example
There was jubilation in the streets after the victory.
胜利后街上充满了庆典气氛。
C1 noun /ˈdʒɒt.ər/

Jotter

记事本
Meaning
a small notebook for writing quick notes or reminders
Example
The student carried a jotter to write down important points during lectures.
学生带着记事本，在讲座期间写下重要要点。
C2 adjective /ˈdʒɪg.ərd/

Jiggered

惊讶; 震惊;
Meaning
surprised or astonished; confused or puzzled
Example
I'll be jiggered if I know what happened here.
如果我知道这里发生了什么，我会感到惊讶。
C2 noun /ˈdʒʌŋk.tʃər/

jucture

关键时刻
Meaning
a particular point in time, especially one of great importance or crisis
Example
At this critical jucture, the company must decide whether to expand or downsize.
在这个关键时刻，公司必须决定是扩展还是裁员。
C1 noun /ˈdʒɑːr.ɡən/

jargon

行话
Meaning
Specialized or technical language used by a particular group or profession.
Example
The lawyer’s explanation was full of legal jargon.
律师的解释充满了法律行话。
C1 noun /ˈdʒækˌfruːt/

Jackfruit

菠萝蜜
Meaning
a large tropical fruit with a spiky exterior and sweet flesh inside
Example
The jackfruit is the largest tree fruit in the world.
菠萝蜜是世界上最大的树果。
C2 noun /ˈdʒʌɡləri/

jugglery

杂技
Meaning
The performance of tricks and illusions, especially by sleight of hand.
Example
The magician's jugglery amazed the audience.
魔术师的杂技让观众惊讶不已。
C1 verb /ˈdʒʌk.stə.poʊz/

juxtapose

将两种不同的事物并排放置
Meaning
To place two different things close together to show how they are different or similar.
Example
The artist juxtaposed traditional and modern elements in his painting.
艺术家在他的画作中并排放置了传统和现代元素。
B2 noun /ˈdʒel.ə.si/

Jealousy

嫉妒；对竞争对手的愤恨
Meaning
a feeling of envy of someone or their achievements; resentment against a rival
Example
His jealousy over his colleague's promotion led to tension in the workplace.
他对同事升职的嫉妒在工作场所造成了紧张。
C2 verb /dʒaʊst/

joust

Meaning
to engage in a medieval contest on horseback with lances; to compete or argue
Example
The knights prepared to joust in front of the cheering crowd.
C1 adjective /ˈdʒoʊ.vi.əl/

jovial

愉快
Meaning
cheerful and friendly in manner
Example
He was in a jovial mood during the family gathering.
他在家庭聚会上心情愉快。
B2 noun /ˈdʒæn.ɪ.tər/

Janitor

清洁工, 看门人
Meaning
a person employed to clean and maintain a building; a caretaker
Example
The school janitor worked late every evening to ensure the classrooms were spotless.
学校的清洁工每天晚上都工作到很晚，以确保教室保持干净。
B2 adjective /ˈdʒɒli/

jolly

愉快
Meaning
Full of good humor and cheerfulness.
Example
The children were in a jolly mood at the party.
孩子们在派对上心情愉快。
C2 verb /ˈdʒɜːrnəlaɪz/

journalize

在日记中记录
Meaning
to record daily transactions or events in a journal, especially in accounting
Example
The accountant will journalize all financial transactions at the end of the day.
会计员将在一天结束时记录所有财务交易。
C2 noun /ˈdʒæɡ.ər.i/

Jaggary

甘蔗糖
Meaning
unrefined sugar made from sugarcane or palm sap; a traditional sweetener
Example
My grandmother uses jaggery instead of white sugar in her recipes.
我的祖母在她的食谱中使用甘蔗糖代替白糖。
B1 adjective /ˈdʒel.əs/

Jealous

嫉妒; 忌妒; 对某人的注意或喜爱的占有欲
Meaning
feeling envious or resentful; possessive of someone's attention or affection
Example
She felt jealous when her friend got promoted.
她在朋友晋升时感到嫉妒。
C2 noun /dʒuːt/

jute

黄麻
Meaning
a long, soft, shiny plant fiber used to make rope, bags, sacks, and coarse cloth
Example
Jute is widely used to make eco-friendly bags and ropes.
黄麻常用于制作环保袋。
C2 noun /dʒɔːnt/

jaunt

短途旅行
Meaning
A short journey or excursion, usually taken for pleasure.
Example
They went on a weekend jaunt to the countryside.
他们在周末去了乡村进行短途旅行。
A2 verb /dʒɔɪn/

join

加入
Meaning
to connect or combine; to become a member of something
Example
Would you like to join our team for the project?
你想加入我们的团队来做这个项目吗？
C2 noun /ˈdʒʌŋkɪt/

junket

旅行或庆典
Meaning
A trip or celebration, often funded by someone else, usually for pleasure or promotional purposes.
Example
The company organized a junket for journalists to promote their new resort.
公司为记者组织了一个旅行，以推广他们的新度假村。
C1 noun /dʒest/

Jest

玩笑; 笑话
Meaning
a thing said or done for amusement; a joke
Example
His comment was made in jest, not to offend anyone.
他的评论是开玩笑的，并不是为了冒犯任何人。
A2 noun /dʒiːnz/

jeans

幸福
Meaning
pants made of denim fabric, often blue, worn as casual clothing
Example
He bought a new pair of blue jeans yesterday.
她收到奖项时，无法掩饰自己的幸福。
B2 verb /dʒɑːɡ/

jog

慢跑
Meaning
to run at a slow, steady pace for exercise
Example
She jogs every morning in the park.
她每天早上在公园里慢跑。
C2 phrase ˌdʒʊə.rɪs.pruːˈden.ʃəl ˈbentʃ.mɑːk

jurisprudential benchmark

法律标准
Meaning
A legal standard or precedent that serves as a reference point for future legal decisions.
Example
The decision set a jurisprudential benchmark.
这个决定设立了一个法律标准。
C1 verb /dʒæb/

jab

Meaning
To poke or thrust quickly, often with a finger or something pointed.
Example
He jabbed his finger at the map to show the location.
C2 noun /dʒuːt liːf/

Jute leaf

黄麻叶
Meaning
the edible leaves of the jute plant, commonly eaten as a leafy green vegetable
Example
Jute leaf is rich in vitamins and minerals and is often cooked with lentils in Bengali cuisine.
黄麻叶富含维生素和矿物质，常在孟加拉美食中与扁豆一起煮。
A2 noun /dʒoʊk/

Joke

笑话; 幽默; 引起笑声的事情
Meaning
a thing that someone says to cause amusement or laughter; something not to be taken seriously
Example
Everyone laughed at his funny joke during the dinner party.
每个人都在晚宴上笑他的有趣笑话。
C1 noun /ˈdʒʌɡ.lər/

Juggler

杂技演员
Meaning
a person who skillfully throws and catches objects as entertainment
Example
The juggler entertained the crowd with his amazing ball tricks.
那位杂技演员用他惊人的球技娱乐了观众。
A2 noun /ˈdʒuːəlri/

jewelry

珠宝
Meaning
personal ornaments such as necklaces, rings, or bracelets that are typically made from precious metals and stones
Example
She wore gold jewelry at the wedding.
她在婚礼上戴了金饰。
B2 adjective /ˈdʒuːɪʃ/

jewish

幸福
Meaning
relating to Jews or Judaism
Example
They celebrate Jewish festivals every year.
她收到奖项时无法掩饰她的幸福。
B2 verb /ˈdʒʌstɪfaɪ/

justify

辩护
Meaning
to show or prove that something is right or reasonable
Example
He tried to justify his decision with logical reasons.
他试图用逻辑的理由来为他的决定辩护。
C1 /ˈdʒɛtɪsən/

jettison

抛弃
Meaning
to throw or drop something from a ship, aircraft, or vehicle to lighten the load; to abandon something no longer wanted
Example
The crew had to jettison cargo to save the sinking ship.
船员们不得不抛弃货物，以挽救沉船。
B2 noun /dʒuː/

jew

犹太人
Meaning
a person whose religion is Judaism or who is of Jewish descent
Example
He is a Jew by heritage and follows Jewish customs.
他是犹太人，继承了犹太传统并遵守犹太习俗。
C2 noun /ˌdʒer.ɪˈmaɪ.æd/

Jeremiad

长篇哀叹; 痛苦的抱怨; 灾难清单
Meaning
a long mournful complaint or lamentation; a list of woes; a prolonged expression of grief
Example
The newspaper editorial was a jeremiad about the decline of moral values in society.
报纸的社论是一篇关于社会道德价值观衰退的杰雷米亚德。
A1 noun /dʒʌmp/

Jump

跳跃
Meaning
an act of jumping; a sudden movement upwards or forwards
Example
The athlete made a perfect jump over the high bar.
运动员成功地跳过了高杆。
B1 noun /ˈdʒuː.əl/

Jewel

宝石; 珍贵的石头; 装饰品
Meaning
a precious stone, typically a single crystal or piece of a hard lustrous or translucent mineral; a valuable ornament
Example
The crown was adorned with precious jewels from around the world.
王冠上装饰着来自世界各地的珍贵珠宝。
C2 adjective /ˈdʒes.tɪŋ/

Jesting

打趣的
Meaning
joking or teasing in a playful manner
Example
He was only jesting when he said he would quit his job.
他只是开玩笑地说自己要辞掉工作。
B2 adjective /ˈdʒuːsi/

juicy

多汁
Meaning
Full of juice; succulent; also used to describe something exciting or scandalous.
Example
The steak was so juicy that it melted in my mouth.
这块牛排多汁到在我嘴里融化。
B1 noun /ˈdʒʌm.pər/

Jumper

毛衣;
Meaning
a knitted garment worn on the upper body; a person or animal that jumps
Example
She wore a warm woolen jumper during the cold winter evening.
她在寒冷的冬夜穿了一件温暖的羊毛跳绳衣。
C1 noun /ˈdʒɪŋ.ɡəl/

Jingle

轻微的金属声，通常由金属物体相互碰撞产生；一首短小而吸引人的歌曲
Meaning
a light ringing sound such as that made by metal objects being shaken together; a short catchy song
Example
The jingle of keys could be heard as she walked down the hallway.
当她走过走廊时，钥匙的声音可以听到。
A2 noun /dʒuːs/

Juice

果汁（来自水果/蔬菜或肉类）
Meaning
the liquid obtained from or present in fruit or vegetables; the liquid that comes from meat when it is cooked
Example
The fresh apple juice was delicious and packed with vitamins.
新鲜的苹果汁美味可口，且富含维生素。
A1 noun /dʒɒb/

Job

工作; 职位; 职业
Meaning
a paid position of regular employment; a task or piece of work
Example
She found a new job at the technology company after graduation.
她在毕业后找到了一份新工作，在一家科技公司工作。
C2 adjective /dʒʊˈrɪdɪkəl/

juridical

司法的
Meaning
Relating to judicial proceedings or the administration of law.
Example
The case raised important juridical questions.
此案件提出了重要的司法问题。
C2 noun /dʒeɪp/

jape

恶作剧, 玩笑
Meaning
A practical joke or humorous remark.
Example
He enjoyed a harmless jape with his friends.
他和朋友们享受了一场无害的恶作剧。
B2 noun /ˈdʒɜːrnəlɪzəm/

journalism

新闻学
Meaning
the activity or profession of collecting, writing, and publishing news and articles for newspapers, magazines, or broadcast media
Example
He studied journalism to become a news reporter.
他学习新闻学成为新闻记者。
A2 noun /ˈdʒækɪt/

Jacket

夹克
Meaning
a piece of clothing worn on the upper body, typically having sleeves and fastening down the front
Example
He wore a leather jacket to protect himself from the cold wind.
他穿了一件皮夹克以保护自己免受寒冷的风吹。
C1 noun dʒuːˈdɪʃ.ər.i

judiciary

司法权
Meaning
The judicial authorities of a country; the system of courts that interprets and applies the law.
Example
The judiciary ensures the rule of law.
司法权确保法治。
C2 adjective /ˈdʒɔːnti/

jaunty

活泼
Meaning
Having a lively, cheerful, and self-confident manner or appearance.
Example
He walked into the room with a jaunty step.
他带着轻快的步伐走进了房间。
B2 adjective /ˈdʒɔɪfəl/

joyful

快乐的
Meaning
full of joy and happiness; causing joy or delight
Example
She felt joyful when she heard the good news.
听到好消息时，她感到很快乐。
C1 adjective /ˈdʒeɪ.dɪd/

jaded

疲倦的，冷漠的
Meaning
Tired, bored, or lacking enthusiasm, typically after having had too much of something.
Example
After years of traveling, she felt jaded by the constant movement.
旅行多年后，她因不断的移动而感到疲倦。
C2 verb /ˈdʒæbər/

jabber

胡言乱语
Meaning
To talk quickly and excitedly but with little sense.
Example
The children jabbered happily after the show.
孩子们在表演后快乐地胡言乱语。
C1 verb /ˈdʒʌɡəl/

juggle

杂耍
Meaning
To continuously toss and catch objects in the air; to manage many tasks at the same time.
Example
He tried to juggle work, studies, and family responsibilities.
他试图同时处理工作、学习和家庭责任。
C2 adjective /dʒoʊˈkoʊs/

jocose

幽默的
Meaning
playful or humorous in speech or behavior
Example
The professor’s jocose remarks kept the class entertained.
教授的幽默评论让班级感到娱乐。
C1 verb /dʒɒt/

jot

快速且简洁地写下
Meaning
to write something quickly and briefly
Example
She jotted down his phone number on a napkin.
她在餐巾纸上迅速记下了他的电话号码。
C2 noun /ˈdʒæz.mɪn/

Jesmine

茉莉花
Meaning
a climbing shrub with fragrant white or yellow flowers
Example
The jasmine flowers filled the garden with their sweet fragrance.
茉莉花让花园充满了甜美的香气。
A2 noun /dʒɔɪ/

Joy

欢乐
Meaning
a feeling of great pleasure and happiness; a person or thing that causes delight
Example
The children's laughter filled the house with joy during the holiday celebration.
孩子们的笑声在假日庆典期间充满了整个房子。
B1 noun /dʒʌdʒ/

Judge

法官; 裁判
Meaning
a public official appointed to decide cases in a law court; a person who decides the results of a competition
Example
The judge carefully reviewed all the evidence before making a decision.
法官在做出决定之前仔细审查了所有证据。
B2 noun /dʒet/

Jet

喷气式飞机
Meaning
a rapid stream of liquid, gas, or flame; an aircraft powered by jet engines
Example
The jet took off smoothly and reached cruising altitude quickly.
这架喷气机平稳起飞，迅速达到了巡航高度。
C2 adjective /ˈdʒɒkənd/

jocund

愉快
Meaning
cheerful and lighthearted
Example
They walked together in a jocund mood after the celebration.
庆祝后，他们在愉快的心情下一起走着。
C2 adjective /dʒɪˈdʒuːn/

jejune

幼稚 / 浅薄 / 无趣
Meaning
Naive, simplistic, and superficial; also dull or uninteresting.
Example
The professor dismissed the essay as jejune and lacking depth.
教授把这篇文章视为幼稚且缺乏深度，予以拒绝。
C2 noun dʒʊˈdɪʃəsnɪs

judiciousness

明智，审慎
Meaning
Having, showing, or done with good judgment or sense.
Example
Her judiciousness in making decisions was appreciated.
她在做决定时的明智被赞赏。
C2 adjective /ˈdʒɒkjələr/

jocular

爱开玩笑的
Meaning
fond of or characterized by joking; humorous
Example
His jocular nature made him popular among colleagues.
他爱开玩笑的性格让他在同事中很受欢迎。
C2 adjective /ˈdʒɔːndɪst/

jaundiced

偏见的 / 嫉妒的 / 由黄疸引起的
Meaning
Affected by or displaying prejudice, envy, or bitterness; also refers to having a yellowish discoloration of the skin due to jaundice.
Example
She gave a jaundiced view of the project after her proposal was rejected.
在她的提案被拒绝后，她对这个项目给出了一个偏见的看法。
A1 noun /dʒuːn/

june

六月
Meaning
the sixth month of the year in the Gregorian calendar
Example
Schools often close for summer vacation in June.
学校通常在六月开始放暑假。
B2 noun /dʒɑːr/

Jar

罐子; 瓶子
Meaning
a wide-mouthed container made of glass or pottery; to have a harsh or unpleasant effect
Example
She stored homemade cookies in a large glass jar on the kitchen counter.
她把自制的饼干存放在厨房台面上的大玻璃罐子里。
C1 noun /ˌdʒæm.bəˈriː/

Jamboree

嘉年华; 庆典;
Meaning
a large celebration or party; a gathering with entertainment; a festive event
Example
The scout jamboree brought together thousands of young people from around the world.
童子军集会把来自世界各地的成千上万的年轻人聚集在一起。
C1 noun /ˈdʒɛpərdi/

jeopardy

危险
Meaning
Danger of loss, harm, or failure.
Example
His careless driving put everyone in jeopardy.
他的鲁莽驾驶把所有人置于危险之中。
B2 noun /ˈdʒʊəri/

jury

陪审团
Meaning
a group of people sworn to give a verdict in a legal case based on the evidence
Example
The jury found him guilty of the crime.
陪审团裁定他犯有罪行。
A2 noun /dʒæz/

jazz

幸福
Meaning
a style of music characterized by improvisation, syncopation, and strong rhythm, originating in African American communities
Example
She loves listening to live jazz on weekends.
当她收到奖项时，她无法掩饰自己的幸福。
B1 noun ˈdʒʌstɪs

justice

正义
Meaning
Just behavior or treatment; the quality of being fair and reasonable.
Example
Justice is sought by the oppressed characters in the story.
在故事中，受压迫的角色寻求正义。
B1 noun, verb /dʒeɪl/

jail

监狱
Meaning
A place for the confinement of people accused or convicted of a crime; to imprison.
Example
The thief was sent to jail for stealing.
小偷因盗窃被送进了监狱。
B1 noun /ˈdʒʌŋ.ɡəl/

Jungle

密林; 丛林;
Meaning
a dense forest in a tropical climate; a place of bewildering complexity or ruthless struggle
Example
The explorer got lost in the dense Amazon jungle for three days.
探险者在密集的亚马逊丛林中迷路了三天。
C2 noun /ˈdʒuː.dɪˌkeɪ.tʃər/

judicature

司法系统
Meaning
the administration of justice or the system of courts
Example
The judicature ensures that laws are fairly applied.
司法系统确保法律得到公正执行。
B1 noun /ˈdʒʌdʒ.mənt/

Judgement

判决；决定
Meaning
the ability to make considered decisions or form sensible opinions; an official decision made by a judge or court
Example
The jury's judgement was based on careful consideration of all the facts.
陪审团的判决基于对所有事实的仔细考虑。
C2 verb /dʒɪr/

jeer

嘲笑
Meaning
to laugh at someone or something in a cruel or mocking way
Example
The crowd began to jeer at the opposing team.
人群开始对对方球队嘲笑。
C2 noun /ˈdʒæk.dɔː/

Jack-daw

小乌鸦
Meaning
a small gray and black bird of the crow family, known for its intelligence
Example
The jackdaw collected shiny objects for its nest.
杰克道收集了闪亮的物品为它的巢。
C1 adjective dʒuːˈdɪʃ.əs

judicious

明智
Meaning
Having, showing, or done with good judgment or sense; wise and careful.
Example
A judicious decision can prevent future problems.
明智的决定可以防止未来的问题。
B2 noun /ˈdʒoʊ.kər/

Joker

小丑
Meaning
a playing card with a picture of a jester, used as a wild card; a person who is fond of joking
Example
He used the joker card to complete his winning hand in the poker game.
他用小丑牌来完成他在扑克游戏中的赢牌。
B1 noun /ˈdʒuː.ni.ər/

Junior

初级; 新手; 下属
Meaning
a person who is younger or lower in rank than someone else; relating to young people
Example
The junior employee was eager to learn from senior colleagues.
这个初级员工渴望向资深同事学习。
C2 noun /ˈdʒɪŋɡoʊ/

jingo

好战的民族主义者
Meaning
a person who strongly supports warlike or aggressive foreign policy; an extreme nationalist
Example
The leader was criticized as a reckless jingo.
领导人被批评为鲁莽的好战分子。