headfirst
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN 英语 BN 孟加拉语 HI 印地语 ES 西班牙语 FR 法语 DE 德语 RU 俄语 ZH 中文 JA 日语
All Vocabulary Cards All Vocabularies
C1 adverb /ˌhɛdˈfɜrst/

headfirst

头朝前
Meaning
With the head leading; in a reckless or hasty manner.
Example
He dived headfirst into the pool.
他头朝前跳入游泳池。
B2 noun /ˈsɪnθɪsɪs/

synthesis

合成,组合
Meaning
The combination of ideas to form a theory or system.
Example
The synthesis of ideas from multiple perspectives led to innovation.
来自多个角度的想法的合成导致了创新。
C1 noun /ˈded.lɑk/

Dead-lock

死锁; 僵局
Meaning
a situation in which no progress is possible; complete standstill
Example
The negotiations reached a deadlock when neither side would compromise.
谈判陷入僵局,因为没有一方愿意妥协。
C1 adjective /taɪˈtænɪk/

titanic

巨大的
Meaning
Of exceptional strength, size, or power.
Example
The company made titanic efforts to expand into new markets.
公司在开拓新市场时做出了巨大的努力。
C1 noun /rɪˈfaɪnəri/

refinery

炼油厂
Meaning
an industrial facility where raw materials are processed and purified
Example
The oil refinery processes thousands of barrels daily.
石油炼油厂每天处理数千桶石油。
B2 noun /ɡoʊld fɪʃ/

Gold fish

金鱼
Meaning
a small ornamental freshwater fish with golden or orange coloration, commonly kept as a pet
Example
The goldfish swam in circles around its glass bowl.
金鱼在玻璃鱼缸里绕圈游动。
B2 adjective /kəˈrɛspɒndɪŋ/

corresponding

相关的
Meaning
matching or related to something
Example
The corresponding page in the book explains the process in detail.
书中的相关页面详细解释了该过程。
C2 adverb /ˈfɔːrbi/

forby

此外
Meaning
In addition; besides (archaic Scottish/English word).
Example
He is kind and generous, and wise forby.
他是仁慈和慷慨的,并且此外还是智慧的。
B2 noun /kənˈdʒʌŋkʃən/

conjunction

连词
Meaning
a word used to connect clauses or sentences, or to coordinate words
Example
The words 'and' and 'but' are common conjunctions.
'和' 和 '但是' 是常见的连词。
A2 adverb /ˈrɛə(r)li/

rarely

很少
Meaning
not often, infrequently
Example
She rarely eats sweets because of her diet.
她因为饮食限制,很少吃糖果。
C2 noun /ˈplætɪtjuːd/

platitude

陈词滥调,空话
Meaning
a remark or statement that is overused and unoriginal
Example
He kept repeating the same platitudes during the speech.
他在演讲中不断重复相同的陈词滥调。
A1 adjective, adverb, pronoun /mʌtʃ/

much

很多
Meaning
a large amount or degree of something
Example
She doesn’t have much time to finish the project.
她没有很多时间来完成这个项目。
B1 noun əˈses.mənt

assessment

评估
Meaning
The evaluation or estimation of the nature, quality, or ability of someone or something.
Example
The assessment process ensures fairness.
评估过程确保公平。
C1 adjective /ˈkɒz.mɪk/

cosmic

宇宙的, 广阔的
Meaning
relating to the universe or cosmos; vast
Example
Astronomers study cosmic phenomena to understand the universe.
天文学家研究宇宙现象,以理解宇宙。
B2 adjective /ˈbruː.təl/

brutal

残忍
Meaning
extremely cruel or harsh; violent and without feeling
Example
The dictator’s rule was marked by brutal violence.
独裁者的统治充满了残忍的暴力。
A2 noun /əˈpɪə.rəns/

Appearance

外观; 出现; 显示
Meaning
the way that someone or something looks; an act of performing or participating in a public event
Example
Her appearance at the event surprised everyone.
她在活动中的出现让所有人都感到惊讶。
C1 verb /ɪnˈtruːd/

intrude

侵入
Meaning
To enter a place or situation where one is not wanted or not invited.
Example
He felt embarrassed to intrude on their private conversation.
他感到很尴尬,打扰了他们的私人谈话。
C1 adjective /pɪˈkjuːniˌɛri/

pecuniary

财务的
Meaning
relating to money or financial matters
Example
They faced pecuniary difficulties after the business failed.
在生意失败后,他们面临着财务困难。
C2 verb /bɪˈnʌm/

benumb

使麻木
Meaning
to make physically numb or without sensation; to make mentally dull or insensitive
Example
The freezing wind seemed to benumb his fingers within minutes.
刺骨的寒风几分钟内就使他的手指麻木了。
C1 adjective /ˈhæb.ɪ.tə.bəl/

Habitable

宜居
Meaning
suitable or good enough to live in
Example
The planet Mars may become habitable in the future.
火星在未来可能变得宜居。
A2 noun /ˈfɪt.nəs/

fitness

身体健康
Meaning
The condition of being physically fit and healthy, or the quality of being suitable to fulfill a particular role or task.
Example
Fitness tests ensure vehicle safety.
身体健康测试确保车辆安全。
C1 adjective /bɪˈriːvd/

Bereaved

丧亲
Meaning
having lost a loved one through death
Example
The bereaved family received many condolences.
丧亲的家庭收到了很多慰问。
B1 noun /məˈdʒɪʃən/

magician

魔术师
Meaning
A person who performs tricks and illusions for entertainment or one believed to have magical powers.
Example
The magician pulled a rabbit out of his hat.
魔术师从他的帽子里拿出了兔子。
C2 noun /ˈɡrændɪləkwəns/

grandiloquence

夸张的语言
Meaning
Pompous or extravagant language, style, or manner, often intended to impress
Example
The politician’s speech was full of empty grandiloquence.
政治家的演讲充满了空洞的夸张语言。
C2 adjective /hɜːrˈbeɪʃəs/

herbaceous

草本
Meaning
Relating to or resembling herbs; plants with soft, non-woody stems.
Example
The garden was filled with herbaceous plants that thrived in the summer.
花园里充满了草本植物,它们在夏季茁壮成长。
B2 adverb /ˈdɛspərətli/

desperately

绝望地
Meaning
in a way that shows despair or great need
Example
He called for help desperately after the accident.
事故发生后,他绝望地呼叫帮助。
B2 noun /ˈmɪs.tʃɪf/

Mischief

恶作剧
Meaning
Playful behavior that causes minor trouble or annoyance but is not meant to cause serious harm
Example
The children were full of mischief during the summer holidays.
孩子们在暑假期间充满了恶作剧。
A2 noun কন্ডিশন

condition

状况
Meaning
A particular state of health or physical fitness; a medical problem.
Example
The condition worsens without proper treatment.
没有适当的治疗,状况会恶化。
C2 noun /əˈdjuː/

adieu

Meaning
A farewell or goodbye, often used in a formal or poetic sense.
Example
She bid her friends adieu before leaving for France.
B2 verb /ɪkˈspaɪər/

expire

到期
Meaning
to come to an end, especially a period of validity or life
Example
My passport will expire next month.
我的护照将在下个月到期。
B2 noun /ˈdʒiː.ni.əs/

Genius

天才
Meaning
exceptional intellectual or creative power or other natural ability; a person who has such ability
Example
Einstein was recognized as a genius for his groundbreaking contributions to physics.
爱因斯坦因其在物理学上的开创性贡献而被认为是天才。
C2 noun /ˌfɑːsfəˈrɛsəns/

phosphorescence

磷光
Meaning
the property of emitting light without noticeable heat
Example
The deep-sea creatures displayed a beautiful phosphorescence.
深海生物展示了美丽的磷光。
C2 noun brəˈvɑː.dəʊ

bravado

虚假的勇气或信心
Meaning
Show of courage or confidence that is not real.
Example
His bravado masked his nervousness before the performance.
他的虚张声势掩盖了他在表演前的紧张情绪。
B2 verb /ˈɛmɪˌɡreɪt/

emigrate

移民
Meaning
To leave one's own country in order to settle permanently in another.
Example
Many people emigrated from Europe to America in the 19th century.
许多人在19世纪从欧洲移民到美国。
B1 adjective /ˈɛnd.ləs/

Endless

无尽的; 无限的; 不受限制的
Meaning
having no end; infinite; limitless
Example
The ocean seemed endless from the shore.
从海岸看,海洋似乎是无尽的。
B1 adjective /rɪˈlɪdʒəs/

Religious

宗教的; 虔诚的; 精神的; 与宗教相关的;
Meaning
relating to or believing in a religion; devout; spiritual;
Example
He comes from a very religious family.
他来自一个非常宗教的家庭。
C2 noun /ˈsɛm.ɪ.nɛr.i/

seminary

神学院
Meaning
A school or college for training priests, ministers, or rabbis.
Example
He decided to enroll in a seminary to study theology.
他决定报名参加神学院,学习神学。
C1 noun /ɪmˌpɒsəˈbɪlɪti/

impossibility

不可能性
Meaning
the state or fact of being impossible; something that cannot be done or achieved
Example
Finishing the project in one day was an impossibility.
在一天内完成这个项目是不可能的。
B2 noun /ˈbɛriəl/

burial

埋葬
Meaning
the act of placing a dead body into the ground.
Example
The burial ceremony took place in the afternoon.
埋葬仪式在下午举行。
C1 adjective ˈɪn.tər.ɪm

interim

临时
Meaning
In or for the intervening period; provisional or temporary.
Example
Interim governments manage transitional phases.
临时政府管理过渡阶段。
A2 verb /faɪt/

fight

战斗
Meaning
to engage in battle or combat; to struggle against
Example
The soldiers fight for their country.
士兵为他们的国家而战。
A2 adverb /ˈrɛɡjələrli/

regularly

定期地
Meaning
at regular intervals; in a regular manner
Example
She exercises regularly to stay healthy.
她定期锻炼以保持健康。
C1 noun /ˌkɒndʒʊˈɡeɪʃən/

conjugation

词形变化
Meaning
the variation of the form of a verb to indicate tense, person, and number
Example
French verbs have complex conjugations.
法语动词有复杂的变位。
A2 adjective /ˈskeəri/

scary

可怕
Meaning
causing fear or making you feel frightened
Example
That horror movie was really scary.
那部恐怖电影真的很吓人。
C2 adjective /ˈprɛfətɔːri/

prefatory

前言
Meaning
serving as an introduction or preface
Example
He made some prefatory remarks before the lecture began.
他在讲座开始前做了一些前言性的评论。
B1 adjective ɪkˈstriːm

extreme

极端
Meaning
Reaching a high or the highest degree; very great.
Example
Extreme weather patterns disrupt ecosystems.
极端的天气模式扰乱了生态系统。
A2 verb /ˈprɒmɪs/

promise

承诺
Meaning
to assure someone that one will definitely do something; to give one's word
Example
I promise to help you with your homework.
我承诺帮助你做作业。
C1 adjective /oʊˈbiːs/

obese

肥胖
Meaning
Extremely overweight; having an excessive amount of body fat.
Example
The doctor advised the obese patient to adopt a healthier lifestyle.
医生建议肥胖的病人采取更健康的生活方式。
B2 adjective /ɪnˈkluːsɪv/

inclusive

包容的
Meaning
Including all the services, facilities, or items normally expected or required; not excluding any section of society or any party involved.
Example
Inclusive growth benefits all sections of society.
包容性增长惠及社会的所有阶层。
A2 noun /bɜːrθ/

Birth

出生; 起源; 开端;
Meaning
the emergence of a baby or young from the body of its mother; the beginning or origin of something
Example
The birth of their first child was a joyful moment.
他们第一个孩子的出生是一个喜悦的时刻。
B2 verb /ˈdæzəl/

dazzle

使目眩
Meaning
to impress deeply or blind with brilliance or skill
Example
The magician's tricks dazzled the audience.
魔术师的把戏使观众眼花缭乱。
C1 verb /ˈkəʊ.dɪ.faɪ/

codify

编码
Meaning
to arrange laws, rules, or ideas into a clear and systematic code
Example
The committee worked to codify the existing laws.
委员会致力于编码现有的法律。
A2 adjective /ˈhevi/

Heavy

沉重的
Meaning
having great weight; intense or severe
Example
The heavy suitcase was difficult to carry up the stairs.
沉重的行李箱很难提上楼。
A1 adjective /mʌm/

Mum

沉默的; 什么也不说; 保持安静
Meaning
silent; saying nothing; keeping quiet
Example
He kept mum about the surprise party plans.
他对惊喜派对的计划保持沉默。
B2 noun prəʊb

probe

探测器
Meaning
An unmanned exploratory spacecraft designed to transmit information about its environment.
Example
The probe collected data from the planet's surface.
探测器从行星表面收集数据。
C2 noun /ˌfrɪdʒɪˈdɛːriəm/

frigidarium

冷水池
Meaning
a large cold pool in ancient Roman baths used for cooling off after hot baths
Example
The ruins of the Roman frigidarium are still visible today.
罗马的冷水池遗址今天仍可见。
C2 verb /ˈdʒɛn.juˌflɛkt/

genuflect

Meaning
to bend one or both knees as a sign of reverence or worship
Example
The worshippers genuflect before the altar.
B1 noun /ˌkjʊr.iˈɑs.ɪ.ti/

Curiosity

好奇心; 不寻常或有趣的物品或事实
Meaning
a strong desire to know or learn something; an unusual or interesting object or fact
Example
Her curiosity about different cultures led her to travel around the world.
她对不同文化的好奇心促使她环游世界。
C2 verb ˈɪnʌndeɪt

inundate

淹没, 用事情或人淹没某人或某物
Meaning
To flood; overwhelm someone or something with things or people to be dealt with
Example
The company was inundated with requests after the advertisement.
广告后,公司被大量请求淹没。
C2 adjective /ˈpaɪbɔːld/

piebald

双色斑点
Meaning
having irregular patches of two colors, especially black and white
Example
The farmer owns a piebald horse with black and white spots.
农夫有一匹带有黑白斑点的双色马。
C1 verb /ˈsenʃər/

censure

谴责, 批评
Meaning
to criticize severely; to express strong disapproval
Example
The committee censured the politician for his misconduct.
委员会因他的不当行为谴责了政治家。
B2 noun /er/

Heir

继承人
Meaning
a person legally entitled to the property or rank of another on that person's death
Example
The young prince was the rightful heir to the throne and would become king someday.
年轻的王子是合法的王位继承人,将来有一天会成为国王。
A2 conjunction /nɔːr/

nor

也不
Meaning
used to introduce a negative clause after a negative statement
Example
He didn't call, nor did he send a message.
他没有打电话,也没有发送消息。
B2 noun /dɪˈsep.ʃən/

Deception

欺骗
Meaning
the action of deceiving someone; the state of being deceived
Example
The magician's deception amazed the audience with seemingly impossible tricks.
魔术师的欺骗让观众对看似不可能的魔法惊讶不已。
C2 adjective /ˌsuːprəˈmʌndeɪn/

supramundane

超世俗
Meaning
beyond the physical or ordinary world; transcendent
Example
The monk spoke of supramundane peace beyond material life.
和尚讲述了超越物质生活的超世俗的平静。
B1 noun ˈtʃæt.dʒiː.piː.tiː

ChatGPT

基于语言的人工智能模型
Meaning
A language-based artificial intelligence model designed for conversational interactions.
Example
ChatGPT helps users generate human-like text efficiently.
ChatGPT帮助用户高效生成类似人类的文本。
C1 noun /ˈtraɪæd/

triad

三合会
Meaning
a group of three closely related people or things
Example
The project was managed by a triad of experts.
该项目由一个三人专家小组管理。
C1 verb /ˈfrɒlɪk/

frolic

欢快地玩耍
Meaning
to play and move about cheerfully, energetically, or playfully
Example
The children frolicked in the garden all afternoon.
孩子们整个下午在花园里欢快地玩耍。
C1 noun /hɪˈstɪəriə/

hysteria

Meaning
An uncontrollable outburst of emotion or fear, often characterized by irrational behavior.
Example
The crowd was in a state of hysteria during the concert.
B2 verb /əˈlaɪn/

align

对齐 / 排成直线
Meaning
To arrange things in a straight line; to adjust or bring into proper relation or agreement.
Example
The manager asked the team to align their goals with the company's mission.
经理要求团队将他们的目标与公司的使命对齐。
A2 adjective /fəˈmɪl.jər/

Familiar

熟悉的; 了解的; 非正式且友好的
Meaning
well-known; easily recognized; having knowledge of; informal and friendly
Example
This song sounds familiar to me.
这首歌听起来对我很熟悉。
B2 noun sliːp ˌdɛprɪˈveɪʃən

sleep deprivation

睡眠不足
Meaning
The condition of not having enough sleep; lack of adequate sleep.
Example
Sleep deprivation can severely impact mental health.
睡眠不足可能严重影响心理健康。
C1 verb /sɪˈkriːt/

secrete

分泌
Meaning
to produce and release a substance from a cell, gland, or organ
Example
The pancreas secretes insulin to regulate blood sugar levels.
胰腺分泌胰岛素以调节血糖水平。
A2 verb /ɪnˈvaɪtɪd/

invited

被邀请的
Meaning
asked someone formally or politely to go somewhere or do something
Example
She was invited to the party.
她被邀请参加聚会。
C2 verb /əˈsɪdɪfaɪ/

acidify

酸化
Meaning
to make something acidic or more acidic
Example
Farmers worry that pollution will acidify the soil.
农民担心污染会使土壤酸化。
C1 adjective ˈɛl.ə.kwənt

eloquent

雄辩
Meaning
Fluent or persuasive in speaking or writing; clearly expressing or indicating something.
Example
Her eloquent speech inspired the entire audience.
她雄辩的演讲激励了整个观众。
C2 adjective /ˌʌnpriːpəˈzɛsɪŋ/

unprepossessing

不吸引人
Meaning
not attractive or appealing in appearance
Example
Despite his unprepossessing looks, he was very kind and intelligent.
尽管他的外貌不吸引人,他还是非常友善和聪明。
B2 adjective /ˌɪnkənˈviːniənt/

Inconvenient

不便的; 难堪的; 麻烦的
Meaning
causing trouble, difficulties, or discomfort; awkward; troublesome
Example
The broken elevator made it inconvenient to reach the top floor.
坏掉的电梯使得到达顶楼变得不方便。
A2 verb /riːˈsaɪ.kəl/

recycle

回收
Meaning
to process used materials so they can be used again instead of being thrown away
Example
We should recycle paper and plastic to reduce waste.
我们应该回收纸张和塑料,以减少废物。
C1 verb /ˌmɪsɪnˈtɜːrprɪt/

misinterpret

误解
Meaning
to understand or explain something wrongly
Example
He misinterpreted her silence as agreement.
他错误地将她的沉默解读为同意。
B2 noun, verb /ˈdɪskɔːrs/

discourse

讲座, 辩论
Meaning
Written or spoken communication or debate.
Example
The professor gave a discourse on ancient philosophy.
教授进行了关于古代哲学的讲座。
C2 noun /ˈɛdi/

eddy

漩涡
Meaning
A circular movement of water, air, or smoke, counter to the main current, causing a small whirlpool or turbulence.
Example
The canoe was caught in an eddy near the rocks.
独木舟被困在岩石附近的漩涡中。
B2 noun /kreɪn/

Crane

Meaning
a large tall bird with long legs and neck; a machine for lifting heavy objects
Example
The graceful crane stood motionless by the water's edge.
优雅的鹤静静地站在水边。
C2 noun /ˈflætʃələns/

flatulence

消化系统中的气体积聚
Meaning
the accumulation of gas in the digestive system; excessive gas in the stomach or intestines
Example
Eating beans can sometimes cause flatulence.
吃豆子有时会引起腹胀。
B1 noun rɪˈflɛkʃən

reflection

反射
Meaning
Serious thought or consideration about something.
Example
The reflection of the past filled his heart with sadness.
过去的反射使他的心充满了悲伤。
A1 noun /ʃɜːrt/

Shirt

衬衫
Meaning
a piece of clothing worn on the upper body with sleeves and buttons
Example
He wore a white shirt to the office.
他穿了一件白衬衫去办公室。
B1 noun /ɡuːs/

Goose

Meaning
large waterbird with a long neck and webbed feet
Example
The goose swam gracefully across the pond.
那只鹅优雅地游过池塘。
C2 noun /səˈlɛrɪti/

celerity

敏捷
Meaning
swiftness of movement; speed
Example
The soldier moved with great celerity to deliver the message.
士兵以极大的敏捷移动,以传递消息。
C2 noun /ˈkʌvən/

coven

女巫集会
Meaning
a group or gathering of witches
Example
The witches met secretly in a coven in the forest.
女巫们在森林中的一个女巫集会中悄悄聚集。
B2 noun daɪˈlem.ə

dilemma

困境, 难题
Meaning
A situation in which a difficult choice has to be made between two or more alternatives.
Example
She faced a moral dilemma at work.
她在工作中面临道德困境。
B2 noun /rɪˈmuː.vəl/

Removal

移除; 去除; 解雇;
Meaning
the action of taking something away or eliminating it; dismissal from office
Example
The removal of the old furniture took all day.
移除旧家具花了整整一天。
B2 adjective + noun ˈædvɜːrs ɪˈfekts

adverse effects

不良影响
Meaning
Negative or harmful impacts that result from an action or condition.
Example
Plastic usage has adverse effects on the environment.
塑料使用对环境产生不良影响。
C2 noun /ˌæprəˈbeɪʃən/

approbation

批准 / 赞扬
Meaning
approval or praise
Example
The plan won the approbation of the board members.
这个计划赢得了董事会成员的批准。
B2 noun /ˌsuːvəˈnɪər/

Souvenir

纪念品
Meaning
a thing that is kept as a reminder of a person, place, or event; a memento
Example
I bought a small souvenir from the gift shop.
我在礼品店买了一个小纪念品。
B2 verb /ʃrʌɡ/

shrug

耸肩
Meaning
To raise and lower the shoulders to express uncertainty or indifference.
Example
He shrugged when asked about the missing file.
他在被问到关于丢失文件的事时耸了耸肩。
C1 adjective /dɪˈsɜːrnɪŋ/

discerning

有洞察力的
Meaning
having good judgment or insight; able to distinguish well
Example
He is a discerning reader who notices subtle details.
他是一个有洞察力的读者,能注意到细微的细节。
C2 noun /rɛtʃ/

wretch

不幸的人
Meaning
an unfortunate or miserable person; a despicable or contemptible person
Example
The poor wretch was left out in the cold with no shelter.
那个不幸的人被遗弃在寒冷中,没有避难所。
C1 verb /ˈkwɪkən/

quicken

加快
Meaning
to make or become faster; to accelerate
Example
His pulse began to quicken as he approached the finish line.
他的脉搏在接近终点线时开始加速。
A2 noun /ˈʌn.jən/

Onion

洋葱
Meaning
a round vegetable with a strong taste and smell, made up of many layers
Example
I need to chop some onions for the curry recipe.
我需要切一些洋葱来做咖喱菜谱。
C1 adjective /ˈpɔːltri/

paltry

微不足道, 微小
Meaning
small or meager; lacking in value or importance
Example
They offered him a paltry sum for his work.
他们为他的工作提供了微不足道的报酬。
B1 adjective, noun /ˈkɔːrpərət/

corporate

与公司/企业相关
Meaning
relating to a corporation or large company; united as a single body
Example
Corporate social responsibility is important for modern businesses.
公司企业社会责任对现代企业非常重要。
C2 adjective /ˌsɛm.iˈkɒn.ʃəs/

semiconscious

半意识的
Meaning
Only partly conscious; not fully aware of surroundings.
Example
He was semiconscious after the accident and could barely respond.
他在事故后半意识清醒,几乎无法回应。
C1 adjective /sɪˈnɒnɪməs/

synonymous

同义词
Meaning
having the same or nearly the same meaning; closely associated with something
Example
For many people, her name is synonymous with generosity.
对于许多人来说,她的名字是慷慨的同义词。
B2 adjective /ˈɡlɔːr.i.əs/

Glorious

荣耀的; 著名的;
Meaning
magnificent; famous; having great beauty or splendor
Example
The sunset was absolutely glorious.
日落绝对是荣耀的。
B2 noun /ˈspəʊksmən/

spokesman

发言人
Meaning
a person who speaks on behalf of others, especially for a group or organization
Example
The spokesman addressed the crowd during the rally.
发言人在集会中向人群讲话。
C1 noun /ɪnˈdem.nə.ti/

Indemnity

赔偿
Meaning
security or protection against a loss or other financial burden; compensation for damage or loss
Example
The insurance company provided full indemnity for the damages caused by the flood.
保险公司为洪水造成的损失提供了完全的赔偿。
C2 noun /haɪˈdrɒmɪtər/

hydrometer

Meaning
An instrument used to measure the density or specific gravity of liquids.
Example
The brewer used a hydrometer to test the sugar content of the solution.
B1 noun /ˈsoʊ.lər ˌsɪs.təm/

Solar system

太阳系
Meaning
the sun and all the planets, moons, asteroids and other objects that orbit around it
Example
Our solar system has eight planets orbiting the sun.
我们的太阳系有八个行星围绕太阳旋转。
B2 noun /tekˈnɒl.ə.dʒɪ.kəl ədˈvɑːns.mənt/

technological advancement

技术进步
Meaning
Progress or improvement in technology that leads to better solutions or capabilities.
Example
Technological advancement is revolutionizing healthcare.
技术进步正在革命化医疗保健。
C1 noun /ˌdiː.viˈeɪ.ʃən/

Deviation

偏差;偏离既定路线
Meaning
the action of departing from an established course; a departure from usual standards
Example
Any deviation from the established procedure must be reported immediately.
任何偏离既定程序的行为都必须立即报告。
C2 noun /sɪlf/

sylph

空灵精灵
Meaning
A mythical spirit of the air; also refers to a slender, graceful woman.
Example
She moved across the stage like a sylph, light and graceful.
她像一个空灵精灵一样轻盈而优雅地在舞台上移动。
B2 adjective /ˈsɛkʃʊəl/

sexual

性行为
Meaning
relating to the instincts, physiological processes, and activities connected with physical attraction or intimate physical contact between individuals
Example
The sexual health of individuals is an important topic in modern medicine.
个体的性健康是现代医学中的一个重要话题。
C1 adjective /ˈtæk.taɪl/

tactile

触觉的
Meaning
Connected with the sense of touch; perceptible by touch or giving a sensation when touched.
Example
The tactile experience of the fabric was soft and smooth.
面料的触觉体验柔软而光滑。
C1 verb /wɑːft/

waft

漂浮在空中
Meaning
to move gently through the air, carried by a breeze
Example
The smell of fresh bread wafted through the kitchen.
新鲜面包的香味飘进了厨房。
C1 noun /fɪlθ/

filth

肮脏
Meaning
dirty or disgusting matter; moral corruption
Example
The streets were full of filth after the storm.
暴风雨后街道上满是肮脏。
B2 verb /əˈkweɪnt/

acquaint

使熟悉
Meaning
to make someone familiar with something; to inform or introduce
Example
Please acquaint yourself with the safety guidelines before operating the machine.
请在操作机器前,熟悉安全指导原则。
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。
A1 noun /mæn/

man

男人
Meaning
an adult human male
Example
The man helped the child cross the street.
那个人帮助孩子过马路。
A2 adjective /θɪk/

Thick

厚的; 密的;
Meaning
having a large distance between opposite sides; dense; not thin
Example
The book has thick pages and a heavy cover.
这本书有厚重的页面和沉重的封面。
C1 noun /ˈtrɪkəri/

trickery

Meaning
The use of dishonest methods to deceive or cheat someone.
Example
The politician was accused of winning the election through trickery.
C1 noun /ˈkɒnfɪdænt/

confidant

知己
Meaning
A person with whom one shares a secret or private matter, trusting them not to repeat it.
Example
She found a true confidant in her childhood friend.
她在她的童年朋友中找到了一个真正的知己。