dorsal
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C2 adjective /ˈdɔːrsəl/

dorsal

背鳍
Meaning
Relating to the back or upper side of an animal or body part.
Example
Sharks have a prominent dorsal fin.
鲨鱼有一个显眼的背鳍。
C1 adjective /ˈɛərˌtaɪt/

airtight

密封的
Meaning
Completely sealed so that no air can get in or out.
Example
Store the cookies in an airtight container to keep them fresh.
将饼干存放在密封容器中，以保持其新鲜。
C1 noun səˌfɪs.tɪˈkeɪ.ʃən

sophistication

高度复杂性或精致的程度
Meaning
High level of complexity or refinement.
Example
The sophistication of modern AI technology is remarkable.
现代人工智能技术的复杂性令人惊叹。
C2 noun /ˈwɔːrˌmʌŋɡər/

warmonger

战争煽动者
Meaning
A person who advocates or promotes war or conflict.
Example
The leader was criticized as a warmonger by his opponents.
这位领导人被对手批评为战争煽动者。
B1 adjective /ˈvɛəriəs/

Various

各种各样的; 多种类型的
Meaning
several different; many different types of
Example
She has lived in various countries around the world.
她曾在世界各地的多个国家生活过。
C1 noun, verb /məˈnuː.vər/

maneuver

Meaning
a planned or skillful movement or action; to move skillfully or carefully
Example
The pilot maneuvered the plane through the storm.
B2 noun /ˈbrɔːd.bænd/

broadband

宽带
Meaning
a high-capacity transmission technique using a wide range of frequencies.
Example
Broadband internet has become a necessity in modern homes.
宽带互联网已成为现代家庭的必需品。
C2 noun /kənˈsaɪnər/

consignor

发货人
Meaning
a person or company that sends goods to be sold or transported
Example
The consignor shipped the goods to the warehouse.
发货人将商品发送到仓库。
C2 adjective /sɛnˈtrɪfjʊɡəl/

centrifugal

离心
Meaning
Moving or tending to move away from a center.
Example
The centrifugal force pushes the clothes to the sides of the washing machine.
离心力将衣物推向洗衣机的两侧。
C2 noun /ˈɡæŋ.weɪ/

gangway

Meaning
A narrow passage or walkway; also an exclamation used to clear the way.
Example
The sailors lowered the gangway for passengers to board.
C1 noun, verb /klɒt/

clot

血块
Meaning
a thick mass of coagulated liquid, especially blood; to form such a mass.
Example
The doctor removed a blood clot from the patient.
医生从病人身上取出了血块。
C2 noun /pɪθ/

pith

要点，精髓
Meaning
the essential or central part of something
Example
The pith of his argument was that honesty matters most.
他论点的要点是诚实最为重要。
C1 noun ˈsɪn.tæks

syntax

语法
Meaning
The arrangement of words and phrases to create well-formed sentences in a language.
Example
Programming languages follow strict syntax rules.
编程语言遵循严格的语法规则。
C2 noun /ɪkˈsɪʒən/

excision

切除
Meaning
the act of cutting something out, especially by surgical removal
Example
The excision of the infected tissue prevented further complications.
切除感染的组织防止了进一步的并发症。
A2 pronoun /hɜːrˈsɛlf/

herself

她自己
Meaning
used to refer to a female person as the object of a verb or preposition when she is the subject
Example
She prepared the meal all by herself.
她自己做了饭。
C2 noun /ˈklærɪən/

Clarion

号角
Meaning
a shrill narrow-tubed war trumpet; a medieval trumpet with a clear piercing tone
Example
The clarion sounded across the battlefield to signal the charge.
号角在战场上响起，标志着进攻的信号。
C1 adjective ˈvɪdʒ.ɪ.lənt

vigilant

警觉
Meaning
Keeping careful watch for possible danger or difficulties; alert and watchful.
Example
The guards remained vigilant throughout the night.
警卫整晚保持警觉。
B2 adjective /ˈsɜːrkjələr/

circular

圆形的
Meaning
shaped like a circle; round in form
Example
The kids sat in a circular arrangement around the campfire.
孩子们围坐在篝火旁，形成圆形的布局。
B2 noun /strɔː/

straw

稻草或吸管
Meaning
a thin tube for sucking up liquids; dried stalks of grain plants
Example
She drank the juice through a straw.
她通过吸管喝了果汁。
C2 noun /ˈpɛd.ən.tri/

pedantry

对小细节或规则的过度关注
Meaning
Excessive concern with minor details or rules.
Example
His pedantry made the meeting unnecessarily long.
他的偏执让会议变得不必要地漫长。
C1 noun /ˌæn.əˈnɪm.ə.ti/

anonymity

匿名
Meaning
The state of being anonymous; having one's identity kept secret or unknown.
Example
Online anonymity protects users from cyber threats.
在线匿名保护用户免受网络威胁。
B1 adjective /ˌoʊld ˈfæʃənd/

old-fashioned

过时的
Meaning
not modern; belonging to an earlier time
Example
He still wears an old-fashioned hat.
他仍然戴着一顶过时的帽子。
C1 verb /ˈspɪərˌhɛd/

spearhead

领导
Meaning
to lead or initiate an action, project, or movement
Example
She spearheaded the campaign for environmental awareness.
她领导了环保意识的运动。
C1 noun /ˈledʒ.ər/

Ledger

总账
Meaning
a book or other collection of financial accounts of a particular type
Example
The accountant updated the company ledger daily.
会计每天更新公司的总账。
B1 verb /ɪnˈstɔːl/

install

安装
Meaning
To place or fix equipment or software so it is ready for use.
Example
He installed the new software on his computer.
他在他的电脑上安装了新软件。
C1 noun /ˈfren.zi/

Frenzy

狂热
Meaning
a state or period of uncontrolled excitement or wild behavior; intense activity
Example
The announcement of the sale created a shopping frenzy at the mall.
销售公告在商场引发了一场购物狂潮。
A2 noun /ˈsoʊldʒər/

soldier

士兵
Meaning
a person who serves in an army, especially as a professional fighter
Example
The soldier marched proudly with his unit.
士兵骄傲地与他的部队一起行进。
C1 noun /rentʃ/

Wrench

扳手
Meaning
a tool used for gripping and turning nuts, bolts, or pipes
Example
He used a wrench to tighten the bolt.
他用扳手拧紧了螺栓。
C2 noun /ˈɛpɪtɑːf/

epitaph

墓志铭
Meaning
A short text written on a tombstone in memory of the deceased.
Example
The gravestone bore an epitaph honoring the soldier’s bravery.
墓碑上刻有纪念这位士兵勇敢的墓志铭。
B1 noun /ˈtæblət/

tablet

Meaning
a small flat computer or a small solid dose of medicine
Example
She took a tablet to relieve her headache.
C2 adjective /pjuːˈtrɛsənt/

putrescent

腐烂的
Meaning
undergoing the process of decay; rotting
Example
The putrescent odor made everyone leave the room.
腐烂的气味让所有人都离开了房间。
C1 verb /ˈdɪs.ɪ.peɪt/

dissipate

逐渐消失
Meaning
To disappear or cause to disappear gradually.
Example
The tension in the room slowly dissipated.
房间里的紧张气氛慢慢消失了。
C2 verb /fɔːrˈfɛnd/

forfend

保护, 防卫, 避免
Meaning
to protect or defend against something undesirable; to prevent
Example
May good fortune forfend any danger from our journey.
愿好运保护我们，避免任何危险。
C2 adjective /ˌdaɪəˈlɛktɪkəl/

dialectical

辩证
Meaning
Relating to the logical discussion of ideas and opinions.
Example
She took a dialectical approach to solve the complex issue.
她采取了辩证的方法来解决这个复杂的问题。
B2 noun /kənˈvɜː.ʃən/

Conversion

转化，变化，转变
Meaning
The process of changing or causing something to change from one form to another.
Example
High website conversion rates indicate effective marketing.
高网站转化率表明有效的市场营销。
A1 verb /ˈoʊpən/

open

打开
Meaning
to move something so as to allow access; to begin
Example
Please open the door for me.
请为我打开门。
C1 adjective /ˈevər ˈlæstɪŋ/

Ever-lasting

永恒的; 持久的;
Meaning
eternal; permanent; enduring forever
Example
Their love is ever-lasting and will never fade.
他们的爱是永恒的，永不褪色。
C2 verb /ˈek.stər.peɪt/

extirpate

根除
Meaning
to completely remove or destroy something unwanted
Example
The government launched a program to extirpate corruption from public offices.
政府启动了一个旨在清除公共部门腐败的项目。
B2 noun /jel/

Yell

叫喊; 尖叫; 哭喊
Meaning
a loud, sharp cry of pain, surprise, or delight; to shout loudly
Example
He let out a yell when he saw the spider.
他看到蜘蛛时发出了尖叫。
C2 noun /ˈpoʊtənˌteɪt/

potentate

君主
Meaning
A monarch or ruler, especially one with absolute power.
Example
The ancient land was ruled by a powerful potentate.
古老的土地由一个强大的君主统治。
C1 noun ˌdaɪvɜːsɪfɪˈkeɪʃən

diversification

多样化
Meaning
The practice of spreading investments across various assets or sectors to reduce risk.
Example
Diversification helps to reduce investment risk.
多样化有助于降低投资风险。
C2 noun /ˌdɪsprəˈpɔːrʃən/

disproportion

不平衡
Meaning
a lack of balance or symmetry; an inequality
Example
There is a clear disproportion between rich and poor in many societies.
在许多社会中，富人和穷人之间存在明显的不平衡。
B2 noun /əkˈnɒlɪdʒmənt/

acknowledgment

承认
Meaning
the act of accepting, admitting, or recognizing something
Example
He received an acknowledgment of his application.
他收到了他申请的承认。
B2 adjective /ˈlaɪ.ə.bəl/

Liable

负责的; 有义务的;
Meaning
legally responsible; accountable; obligated
Example
The company is liable for any damages caused by their defective products.
公司对因其有缺陷的产品造成的任何损害负责。
C1 noun /ɪkˈspoʊnənt/

exponent

指数
Meaning
a person who supports, promotes, or explains an idea; in math, a symbol denoting power
Example
She is a leading exponent of modern dance.
她是现代舞蹈的领先指数。
B1 adjective /luːs/

loose

松
Meaning
not firmly or tightly fixed in place
Example
The screw is loose and needs tightening.
螺丝松动，需要紧固。
C2 noun /ˈsɛntɔːr/

centaur

人马
Meaning
A mythological creature with the upper body of a human and the lower body of a horse.
Example
The centaur is a well-known figure in Greek mythology.
人马是希腊神话中一个著名的形象。
C2 noun /ˈzel.ət/

zealot

狂热分子
Meaning
A person who is fanatical and uncompromising in pursuit of their ideals.
Example
He was considered a zealot for his strict political views.
由于他严格的政治观点，他被视为狂热分子。
B2 noun /stɑːˈveɪ.ʃən/

Starvation

饥饿
Meaning
suffering or death caused by lack of food; extreme hunger
Example
Many people died of starvation during the famine.
许多人在饥荒期间死于饥饿。
A2 adverb /ˈnaɪsli/

nicely

很好地
Meaning
in a pleasant, kind, or satisfactory manner; carefully and appropriately
Example
She explained the problem nicely so everyone could understand.
她把问题解释得很好，让大家都明白了。
C2 noun /kənˈtjuː.ʒən/

contusion

淤伤，碰伤
Meaning
a bruise or injury without breaking the skin
Example
The boxer had several contusions after the match.
拳击手在比赛后有好几个淤伤。
A2 preposition /pɜːr/

per

每人
Meaning
for each, according to
Example
The tickets are priced at $20 per person.
票价为每人20美元。
A1 verb /ˈfɪnɪʃ/

finish

完成
Meaning
to complete or bring to an end; to reach the final point
Example
She finished her homework before dinner.
她在晚餐前完成了作业。
B2 adjective /ˈsɪn.ɪ.kəl/

cynical

愤世嫉俗
Meaning
Believing that people are motivated by self-interest; distrustful of human sincerity or integrity.
Example
She was cynical about the politician's promises.
她对政治家的承诺持愤世嫉俗的态度。
B2 adjective /ˈwɪk.ɪd/

Wicked

邪恶的; 恶行的;
Meaning
evil or morally wrong; intended to or capable of harming someone or something
Example
The wicked queen cast a spell on the princess.
邪恶的女王对公主施下了一个咒语。
A2 noun /ˈdæm.ɪdʒ/

Damage

损害; 损失
Meaning
physical harm caused to something; injury or harm that reduces value or usefulness
Example
The storm caused significant damage to the coastal buildings.
暴风雨对沿海建筑物造成了重大损害。
C2 noun /kəˈræf/

carafe

玻璃瓶
Meaning
a glass container without handles used for serving drinks like water or wine
Example
The waiter brought a carafe of water to the table.
服务员把一瓶水放在桌子上。
C1 noun /ɔːr/

Oar

桨
Meaning
a long pole with a flat blade used to row a boat
Example
He dipped the oar into the water and pulled the boat forward.
他将桨浸入水中并拉动船向前。
B1 noun /trænzˈleɪtər/

translator

翻译者
Meaning
a person or tool that converts words or text from one language into another
Example
The translator helped the tourists understand the guide.
翻译者帮助游客理解导游。
B1 verb /kleɪm/

claim

声称
Meaning
to assert ownership; to state as fact
Example
He claims to be the rightful owner.
他声称自己是合法的拥有者。
B2 noun /ˈleð.ər/

Leather

皮革
Meaning
animal skin that has been treated to preserve it and make it suitable for use
Example
He bought a leather jacket from the store.
他在商店里买了一件皮夹克。
C1 noun /ˈkɒnɪfər/

conifer

针叶树
Meaning
a type of tree that bears cones and evergreen needle-like leaves, such as pine or fir
Example
The forest is dominated by conifers like pine and spruce.
森林由松树和云杉等针叶树主导。
C2 verb /ˈwiːdəl/

wheedle

用奉承说服
Meaning
to persuade or coax someone by using flattery or smooth talk
Example
She managed to wheedle extra pocket money from her father.
她成功地从父亲那里获得了额外的零花钱。
C1 adverb /ˌwɛr.əˈpɒn/

whereupon

紧接着
Meaning
Immediately after which; as a result of which.
Example
He confessed his mistake, whereupon she forgave him.
他承认了错误，紧接着她原谅了他。
C1 adjective /ˈskɛtʃi/

sketchy

不完整
Meaning
not thorough or detailed; suspicious or unsafe
Example
The details of the project were still sketchy.
项目的细节仍然不完整。
A1 verb /weɪt/

wait

等待
Meaning
to stay in expectation; to delay action until something happens
Example
Please wait here while I get the documents.
请在这里等待，我去拿文件。
C1 noun /ˈbjuːɡəl/

Bugle

军号
Meaning
a brass musical instrument similar to a trumpet but without valves, used especially for military calls
Example
The soldier played the bugle to signal the start of the ceremony.
士兵吹响军号以示仪式开始
C1 verb /daɪˈvɜːrdʒ/

diverge

分歧
Meaning
to separate and go in different directions; to differ
Example
The two paths diverge at the fork in the road.
这两条路在路口分开。
C1 noun /ɪnˈfɜː.mə.ti/

Infirmity

虚弱；疾病；虚弱
Meaning
physical or mental weakness; a disease or ailment; frailty
Example
Despite his advanced age and various infirmities, he remained mentally sharp and alert.
尽管他年事已高，且有多种病痛，他仍保持着敏捷和警觉。
C1 verb /aʊst/

oust

驱逐
Meaning
To remove someone from a position or place of power or authority.
Example
The rebels ousted the dictator from power.
叛乱者将独裁者赶下台。
C2 noun /ˈnɛtl̩/

nettle

一种触碰时会引起刺激的植物
Meaning
a plant with stinging hairs that cause irritation when touched
Example
He accidentally brushed against the nettle and felt a sharp sting.
他不小心碰到了荨麻，感到一阵剧烈的刺痛。
C1 adjective /ˈfrɪdʒɪd/

Frigid

寒冷的; 冰冻的
Meaning
extremely cold; freezing; icy
Example
The frigid weather made it difficult to go outside.
寒冷的天气让出去变得困难。
B2 verb /rɪˈvaɪv/

revive

复苏
Meaning
To bring back to life, consciousness, or activity.
Example
The paramedics managed to revive the unconscious man.
急救员成功让昏迷的男子复苏。
C1 adjective /ˈpjuː.nɪ.tɪv/

punitive

惩罚性
Meaning
Inflicting or intended as punishment.
Example
The company faced punitive measures for violating the law.
该公司因违反法律而面临惩罚性措施。
C2 adjective /kəmˈbʌstɪbəl/

combustible

可燃的
Meaning
Capable of catching fire and burning easily.
Example
Dry leaves are highly combustible.
干叶子非常易燃。
B2 adjective /ˈtaɪm.li/

Timely

及时的; 准时的
Meaning
happening at the right time; punctual
Example
His timely arrival saved the meeting.
他及时的到达拯救了会议。
B1 noun ɔːˈθɒrəti

authority

权威
Meaning
The power or right to give orders, make decisions, and enforce obedience; a person or organization having power or control.
Example
Regional authority was emphasized.
区域授权得到了强调。
B1 noun /freɪz/

phrase

短语
Meaning
a small group of words standing together as a conceptual unit
Example
He gave a memorable phrase at the conference.
他在会议上说了一句令人难忘的话。
B2 adverb /ʌnˈsɜːrtənli/

uncertainly

不确定地
Meaning
in a way that shows doubt or lack of certainty
Example
She glanced uncertainly at the complicated instructions.
她不确定地看着复杂的说明。
C1 noun /deɪˈtɒnt/

detente

缓和紧张关系
Meaning
the easing of strained relations, especially between countries
Example
The treaty helped bring about a détente between the two nations.
该条约有助于缓解两个国家之间的紧张关系。
C2 noun /ˈliːdʒənəri/

legionary

罗马士兵
Meaning
a soldier in the Roman army
Example
Each legionary carried a shield and a short sword.
每个军团士兵都带着盾牌和一把短剑。
C2 noun /ˈfaɪnəri/

finery

昂贵或精致的衣服
Meaning
expensive or elaborate clothes, decorations, or accessories
Example
She attended the party in her finest finery.
她穿着最好的衣服参加了聚会。
B1 noun /kənˌɡrætʃəˈleɪʃən/

congratulation

祝贺
Meaning
an expression of praise or joy for someone’s achievement or good fortune
Example
She sent a congratulation to her friend on winning the award.
她向朋友送上了获奖的祝贺。
A2 noun /dɪˈsɪʒ.ən/

Decision

决定
Meaning
a conclusion or resolution reached after consideration; the action of deciding
Example
Making the right decision required careful analysis of all available options.
做出正确的决定需要对所有可用选项进行仔细分析。
B2 adjective /ˈdʌsti/

dusty

满是灰尘的
Meaning
covered with or full of dust; dry and dull from lack of moisture or use
Example
The old bookshelf was dusty after years of neglect.
多年无人打理后，这个旧书架满是灰尘。
C1 verb /ɔːrˈdeɪn/

ordain

Meaning
To officially make someone a priest or minister; to decree or order something officially.
Example
The bishop will ordain three new priests this Sunday.
B2 adjective /ˈmɒdɪst/

modest

Meaning
Having or showing a humble estimate of one’s importance; simple and not extravagant.
Example
She lives in a modest house in the countryside.
C1 verb /brɔɪl/

broil

烤
Meaning
To cook food by direct heat, usually under a grill or over a fire.
Example
She broiled the chicken until it was golden brown.
她把鸡肉烤到金黄色。
B2 adjective /məˈkænɪkəl/

mechanical

幸福
Meaning
relating to machines or the way they work
Example
She has a good understanding of mechanical systems.
当她收到奖项时，她无法掩饰自己的幸福。
C2 verb /ˈdiːɪfaɪ/

deify

神化
Meaning
to treat or worship someone or something as a god
Example
Some fans deify their favorite celebrities.
一些粉丝将他们的偶像神化。
B2 verb, adjective /ˈfɒstər/

foster

培养
Meaning
to encourage the development of something; to raise a child that is not one's own
Example
The program aims to foster creativity in young students.
该计划旨在促进年轻学生的创造力。
B2 noun ˌreɪdɪˈeɪʃən

radiation

辐射
Meaning
The emission of energy as electromagnetic waves or as moving subatomic particles.
Example
Radiation from the sun can be harmful without protection.
太阳的辐射没有保护可能是有害的。
C2 noun /ɡæsˈtraɪtɪs/

gastritis

胃炎
Meaning
Inflammation of the lining of the stomach.
Example
The doctor diagnosed him with gastritis after his endoscopy.
医生在他的内窥镜检查后诊断为胃炎。
B2 noun ˌɪm.plɪˈkeɪ.ʃən

implication

暗示
Meaning
A conclusion that can be drawn from something although it is not explicitly stated; a likely consequence.
Example
The implication of climate change is severe.
气候变化的暗示意义是严重的。
C2 noun /mʌsk/

Musk

麝香
Meaning
a strong-smelling substance secreted by certain animals, used in perfumes and traditional medicine
Example
The perfume contained natural musk that gave it an exotic fragrance.
香水中含有天然麝香，给它带来了异国情调的香气。
C2 verb /frɪz/

frizz

Meaning
to form into small, tight curls or cause hair to become fuzzy and tangled
Example
The humid weather caused her hair to frizz.
A1 noun ˈræbɪt

rabbit

兔子
Meaning
A small mammal with long ears, long hind legs, and a short tail
Example
The rabbit ran quickly into the forest.
兔子快速地跑进了森林。
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。
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。
B1 noun /ˈmɪʃ.ən/

Mission

一个重要的任务或使命，分配给个人或团队；一个特定的目标或目的
Meaning
An important task or assignment given to a person or group; a specific purpose or goal
Example
The astronauts completed their mission to the space station.
宇航员完成了他们的任务，前往太空站。
C1 noun/verb /pɔːr/

pore

毛孔 / 仔细研究
Meaning
As a noun: a tiny opening in the skin or surface. As a verb: to study something carefully.
Example
She pored over the documents for hours before making a decision.
她在做出决定之前，花了几个小时仔细查看文件。
B1 noun /rɪˈwɔːd/

reward

奖励
Meaning
something given in recognition of service, effort, or achievement
Example
He received a reward for returning the lost wallet.
他因归还丢失的钱包而获得奖励。
C2 noun /ˈkɒmɪti/

comity

礼貌，互相尊重
Meaning
Courtesy and considerate behavior towards others; mutual respect.
Example
The meeting was conducted with comity and respect.
会议是以礼貌和尊重的方式进行的。
C1 noun /kənˈsiːt/

conceit

自负
Meaning
excessive pride in oneself; vanity
Example
His conceit made him unpopular among his colleagues.
他的自负让他在同事中不受欢迎。
A2 noun /ˈdɪfərəns/

difference

区别
Meaning
A point or way in which things are not the same.
Example
There is a big difference between theory and practice.
理论和实践之间有很大的区别。
B2 adjective /prəˈtɛktɪv/

protective

保护性的
Meaning
giving or capable of giving protection; shielding from harm or danger
Example
She wore a protective helmet while riding her bike.
她骑自行车时戴着保护性头盔。
C2 noun /ˈdʒʊntə/

junta

军事政府
Meaning
A military or political group that rules a country after taking power by force.
Example
The junta seized power after the coup.
政变后，军事政府掌握了权力。
B2 noun /ˌrɛprɪzɛnˈteɪʃən/

representation

代表
Meaning
the action of speaking or acting on behalf of someone or something
Example
Her representation of the team was impeccable.
她对团队的代表非常出色。
B2 noun /əˌbriːviˈeɪʃən/

abbreviation

缩写
Meaning
a shortened form of a word or phrase
Example
NASA is an abbreviation for National Aeronautics and Space Administration.
NASA 是 National Aeronautics and Space Administration 的缩写。
C1 noun /ˈnaɪ.tɪŋ.ɡeɪl/

Nightingale

夜莺
Meaning
small songbird known for its beautiful singing, especially at night
Example
The nightingale sang sweetly in the moonlight.
夜莺在月光下甜美地歌唱。
B2 adjective /ˈtiːdiəs/

Tedious

乏味的; 枯燥的
Meaning
tiresome because of length or dullness; boring and monotonous
Example
The lecture was so tedious that many students fell asleep.
这节课非常无聊，以至于很多学生都睡着了。
A2 verb /əˈpɪə/

appear

出现
Meaning
to become visible or come into sight; to seem
Example
She appeared suddenly at the door.
她突然出现在门口。
B1 noun /ˈmʌðər ˈlæŋɡwɪdʒ/

mother language

母语
Meaning
the first language a person learns from childhood; native language
Example
Children learn best when they are taught in their mother language.
孩子用母语学习效果最好。
B2 noun, verb /pɪə(r)/

peer

同级
Meaning
noun: a person of the same rank or status; verb: to look closely or with difficulty
Example
He tried to peer through the fog to see his peers on the other side.
他试图穿过雾气，看他的同伴在另一边。
C2 noun/verb /ˈsoʊdʒɜrn/

sojourn

短暂停留
Meaning
A temporary stay at a place; to stay temporarily
Example
She enjoyed a brief sojourn in Paris during the summer.
她在夏天享受了在巴黎的短暂逗留。
C1 adjective /ˌtɒpsi ˈtɜːvi/

topsy-turvy

混乱的
Meaning
in a state of confusion, disorder, or upside down
Example
The sudden announcement left the office in a topsy-turvy state.
突如其来的公告让办公室陷入了完全混乱的状态。
B2 adjective /ˈhaɪˌprəʊfaɪl/

high-profile

高端
Meaning
having a lot of attention or public notice
Example
The CEO attended a high-profile conference in New York.
首席执行官参加了纽约的一场高端会议。
C2 noun /ɒmˈnɪpətəns/

omnipotence

全能
Meaning
The quality of having unlimited power or authority.
Example
Many religions describe God’s omnipotence as absolute.
许多宗教将上帝的全能描述为绝对的。
B2 noun /ˈsliːpər/

sleeper

睡觉的人；意外成功的事物
Meaning
a person or thing that sleeps; something that unexpectedly succeeds
Example
The movie turned out to be a real sleeper hit.
这部电影竟然成为了意外的成功。
C1 noun /ˈpleɪˌraɪt/

playwright

剧作家
Meaning
a person who writes plays
Example
Shakespeare is considered the greatest playwright of all time.
莎士比亚被认为是历史上最伟大的剧作家。
B2 adjective /sɪˈlek.tɪv/

Selective

选择性的
Meaning
relating to or involving careful selection; choosy about what to accept
Example
The university has a selective admission process for new students.
大学对新生有选择性的录取过程。