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B1 verb /kənˈkluːd/

conclude

结束
Meaning
to bring to an end; to decide or determine after consideration
Example
We will conclude the meeting at five o'clock.
我们将在五点钟结束会议。
A2 verb /ˈkænsəl/

cancel

取消
Meaning
to decide that something planned will not take place
Example
The flight was canceled due to heavy rain.
航班因大雨被取消。
B2 noun /kənˈtroʊlər/

controller

控制器
Meaning
a person or device that manages, directs, or regulates something
Example
The game controller made it easy to play the video game.
游戏控制器让玩视频游戏变得更容易。
C1 noun /kliːk/

clique

小圈子
Meaning
a small, exclusive group of people
Example
The students formed a clique that excluded others.
学生们组成了一个排外的小圈子。
C1 noun /ˌkæm.əˈrɑː.dɚ.i/

camaraderie

友谊, 伙伴关系, 团结
Meaning
Mutual trust and friendship among people who spend a lot of time together.
Example
The camaraderie among teammates was inspiring.
队友之间的友情令人鼓舞。
C2 noun ˌkɒdʒɪˈteɪʃən

cogitation

沉思, 思考
Meaning
The action of thinking deeply about something; contemplation
Example
After much cogitation, he made the final decision.
经过深思熟虑后，他做出了最终决定。
B2 noun /kriːk/

creek

小溪
Meaning
a small stream or narrow river
Example
We went fishing by the creek near our house.
我们在离家很近的小溪旁钓鱼。
C2 adjective kaɪˈmɛr.ɪ.kəl

chimerical

幻想的，不现实的
Meaning
Illusory or impossible to achieve; existing only in imagination.
Example
His chimerical ideas often baffled realists.
他的幻想的想法常常让现实主义者困惑。
C2 noun /ˈkæʒuɪstri/

casuistry

诡辩术
Meaning
The use of clever but false reasoning, especially in relation to moral questions.
Example
The lawyer’s argument was dismissed as mere casuistry.
律师的辩论被作为单纯的诡辩术驳回了。
C1 noun /ˈkɑːmənˌwɛlθ/

commonwealth

英联邦
Meaning
an independent community or state, especially one founded for the common good; also an association of nations
Example
Australia is a member of the Commonwealth of Nations.
澳大利亚是英联邦国家的成员。
C1 verb kəˈrɒb.ə.reɪt

corroborate

确认
Meaning
Confirm or give support to a statement, theory, or finding.
Example
The witness corroborated the defendant's testimony.
证人核实了被告的证词。
B1 noun /kənˈsjuːmər/

consumer

消费者
Meaning
A person who buys and uses goods and services.
Example
The company focuses on understanding consumer needs.
公司专注于理解消费者需求。
C1 noun /kɑːrˈtɒɡrəfi/

cartography

制图学
Meaning
The science or practice of drawing maps.
Example
She studied cartography at university to learn how to design maps.
她在大学学习制图学，以便学会设计地图。
C1 noun /ˌkɒnfləˈɡreɪʃən/

conflagration

大规模毁灭性火灾
Meaning
A large, destructive fire that destroys a great deal of land or property.
Example
The forest was devastated by a massive conflagration that lasted for days.
这片森林被一场持续了几天的大火摧毁。
C2 noun /ˈkeɪ.nə.naɪt/

canaanite

迦南人
Meaning
a member of a people who lived in the ancient land of Canaan in the Middle East
Example
The Canaanites were known for their advanced trade networks.
迦南人以其先进的贸易网络而闻名。
B2 noun /kɜːrd/

Curd

酸奶
Meaning
a white dairy product made by coagulating milk; yogurt
Example
She added fresh curd to the salad for a tangy flavor.
她在沙拉中加入了新鲜的酸奶，带来了酸味。
B1 adjective /ˈkɒn.stənt/

Constant

恒定的; 不变的; 稳定的
Meaning
occurring continuously over a period of time; unchanging; steady
Example
The machine runs at a constant speed.
机器以恒定的速度运行。
C2 noun /kiˌɑːrəˈskjʊəroʊ/

chiaroscuro

光与暗的戏剧性对比
Meaning
The use of strong contrasts between light and dark in art or literature to create a dramatic effect.
Example
The artist's painting used chiaroscuro to highlight the figure's face.
艺术家的画作使用了基阿罗斯库罗来突出人物的面部。
C1 adjective /kənˈdʒenɪtl/

congenital

先天的
Meaning
existing from birth, usually describing a disease or condition
Example
The child was born with a congenital heart defect.
这个孩子出生时就有先天性心脏缺陷。
C1 adjective /kɔɪ/

coy

害羞的, 内向的
Meaning
reluctant to give details or reveal feelings; shy or reserved
Example
She gave a coy smile when asked about her plans.
当被问及她的计划时，她露出了一丝害羞的微笑。
B1 adjective /ˈkæʒ.u.əl/

Casual

轻松和无忧; 偶然发生; 非正式
Meaning
relaxed and unconcerned; happening by chance; informal
Example
He wore casual clothes to the party.
他穿着休闲衣服去参加了聚会。
C2 noun /ˈʃɛvrən/

chevron

V形符号
Meaning
A V-shaped pattern, often used in military insignia or design.
Example
The sergeant’s uniform displayed three chevrons on the sleeve.
军士的制服上显示了三条雪佛龙标记。
C1 verb /kənˈfaʊnd/

confound

Meaning
to confuse or surprise someone, often by acting against their expectations
Example
The magician's trick seemed to confound the entire audience.
C1 verb /kəmˈpjuːt/

compute

计算
Meaning
To calculate or determine by using a computer or mathematical methods.
Example
The software can compute the total cost in seconds.
该软件可以在几秒钟内计算出总成本。
B2 noun /kənˈspɪrəsi/

conspiracy

阴谋
Meaning
A secret plan by a group to do something unlawful or harmful.
Example
The police uncovered a conspiracy to overthrow the government.
警方揭露了一项推翻政府的阴谋。
B2 noun /kroʊ/

Crow

乌鸦
Meaning
a large black bird known for its intelligence and harsh call
Example
The crow cawed loudly from the tree branch.
乌鸦从树枝上大声地叫。
B2 adjective /ˈkɒnʃəs/

conscious

清醒
Meaning
Aware of and responding to one's surroundings; awake.
Example
She was fully conscious after the surgery.
她在手术后完全清醒。
B2 noun /kənˌtɪn.juˈeɪ.ʃən/

continuation

延续
Meaning
the action of carrying something on over time; extension
Example
The continuation of the series was announced after the finale.
系列的延续在结局后宣布。
C1 noun /kəˈnʌn.drəm/

conundrum

复杂的问题或谜题
Meaning
A complex problem or puzzle without an easy solution
Example
The ethical conundrum puzzled the researchers.
这个道德困境让研究人员感到困惑。
C2 noun /ˈkaʊntɪŋˌhaʊs/

counting-house

会计办公室
Meaning
a business office where accounts are kept and financial transactions are managed
Example
The merchant spent most of his day in the counting-house reviewing ledgers.
商人一天的大部分时间都在会计办公室检查账簿。
B2 verb /kənˈvɜːs/

converse

交谈
Meaning
to have a conversation; to talk together
Example
They conversed about literature for hours.
他们谈了几个小时关于文学。
B1 adjective /ˈkɜːrli/

curly

卷曲的
Meaning
having curls or waves; shaped with bends or coils
Example
She has naturally curly hair.
她有自然的卷曲头发。
B2 noun /kɒd fɪʃ/

Cod fish

鳕鱼
Meaning
A large marine fish with white flesh, commonly used for food
Example
The fisherman caught a large cod fish in the North Atlantic.
渔夫在北大西洋捕到了一条大鳕鱼。
B1 noun /ˌkænsəˈleɪʃən/

cancellation

取消
Meaning
the act of stopping something that was planned or scheduled; the act of nullifying or invalidating something
Example
The airline announced the cancellation of several flights due to bad weather.
由于恶劣天气，航空公司宣布了航班取消。
B1 noun ˌkɒnsənˈtreɪʃən

concentration

集中
Meaning
The action or power of focusing one's attention or mental effort on a particular object or activity
Example
Concentration is key to mastering any skill.
集中是掌握任何技能的关键。
C2 noun, verb /ˈkaʊntərˌtʃɑːrdʒ/

countercharge

反诉
Meaning
an opposing charge or accusation; to make an opposing attack
Example
The lawyer filed a countercharge against the accuser.
律师对指控者提起了反诉。
C1 noun /krʌst/

crust

外壳
Meaning
the hard outer surface of something, especially bread or the Earth's outer layer
Example
He cut off the crust of the bread before eating.
他在吃之前切去了面包的外壳。
A2 verb /krɒs/

cross

穿越
Meaning
to go from one side to another, or to pass through
Example
We crossed the river using a wooden bridge.
我们通过一座木桥过了河。
C1 verb /ˌkɒm.pɑːtˈmen.təl.aɪz/

compartmentalize

划分
Meaning
To divide into sections or categories; to separate things into compartments.
Example
To increase efficiency, he compartmentalized his work tasks.
为了提高效率，他将工作任务划分开来。
C2 verb /kənˈdʒiːl/

congeal

凝固
Meaning
to become thick or solid, especially from cooling
Example
The soup began to congeal after being left on the table.
汤开始在桌子上放置后变稠。
B1 verb /kræk/

crack

幸福
Meaning
To break or cause to break without complete separation; to make a sharp sound.
Example
The glass cracked when it was dropped on the floor.
当她收到奖项时，她无法掩饰她的幸福。
B2 noun /kəmˈpɑːrt.mənt/

Compartment

车厢
Meaning
a separate section or division of a larger space, especially in a train
Example
We found seats in the first-class compartment.
我们在头等舱车厢找到了座位。
C2 noun /ˈkɔːrpəskəl/

corpuscle

小颗粒或细胞，尤其是血细胞
Meaning
a small particle or cell, especially a blood cell
Example
Red corpuscles carry oxygen throughout the body.
红血球在体内运输氧气。
A2 noun /ˈkɒlɪdʒ/

college

大学
Meaning
An educational institution where students study for degrees or professional qualifications.
Example
She hopes to attend college in the city next year.
她希望明年能在城市的大学就读。
B1 verb /krɔːl/

crawl

爬行
Meaning
to move slowly on hands and knees; to move very slowly
Example
The baby crawled across the floor to reach the toy.
宝宝爬过地板去拿玩具。
C1 noun kəˈmɛns.mənt

commencement

开始
Meaning
The beginning of something; a ceremony at which degrees or diplomas are conferred on graduating students.
Example
The commencement ceremony marked the start of a new journey.
开始仪式标志着新旅程的开始。
C1 adjective /kənˈsɜːrtɪd/

concerted

协调的
Meaning
done with great effort, planned and performed together by multiple people
Example
The workers made a concerted effort to improve conditions.
工人们为改善条件做出了协调的努力。
B1 noun /kənˈteɪ.nər/

container

集装箱
Meaning
A receptacle or box used for storage or transportation.
Example
Containers are essential for logistics.
集装箱对于物流至关重要。
C2 noun /ˈkɒnsənəns/

consonance

和谐, 音响和谐
Meaning
Agreement or harmony among parts; a pleasing combination of sounds in music or words.
Example
The consonance between their ideas made the project successful.
他们的思想之间的和谐使得项目成功。
A2 noun/verb /ˈsaɪkl/

cycle

自行车 / 循环
Meaning
a series of events that repeat in the same order; or to ride a bicycle
Example
She cycles to school every day.
她每天骑自行车去学校。
B2 adjective /ˈkɒm.pɪ.tənt/

Competent

有能力的; 能干的
Meaning
having the necessary skill or knowledge to do something successfully; capable
Example
She is a competent manager who handles all tasks efficiently.
她是一个能干的经理，能够高效地处理所有任务。
C2 noun /sɛnˈtjʊəriən/

centurion

百夫长
Meaning
A commander of a unit of one hundred soldiers in the ancient Roman army.
Example
The centurion led his men into battle with courage.
百夫长带领他的士兵英勇作战。
C2 noun /kənˈtrɪʃ.ən/

contrition

悔恼
Meaning
the state of feeling remorseful and repentant
Example
His contrition was evident after the apology.
在道歉后，他的悔恼显而易见。
C1 noun /ˈkɒnsjʊlət/

consulate

领事馆
Meaning
the building or office where a consul works
Example
He went to the consulate to renew his visa.
他去了领事馆续签他的签证。
B2 noun /kəmˈplɛksɪti/

complexity

复杂性
Meaning
The state of being complex; intricacy.
Example
The complexity of the problem required a team of experts.
问题的复杂性要求一支专家团队。
C1 verb /kənˈdəʊn/

condone

宽容
Meaning
To accept or allow behavior that is morally wrong or offensive.
Example
The manager refused to condone harassment in the workplace.
经理拒绝在工作场所宽容骚扰。
B2 noun /ˈkjuː.bɪ.kəl/

cubicle

办公隔间
Meaning
A small partitioned-off area of a room, typically in an office.
Example
She works in a cubicle with three other colleagues.
她和另外三位同事在一个办公隔间里工作。
B1 noun /kəmˈpær.ɪ.sən/

Comparison

比较
Meaning
the act of examining the similarities and differences between two or more things
Example
The teacher made a comparison between the two poems to show their different styles.
老师通过比较两首诗的不同风格来展示它们的差异。
B2 verb /koʊp/

cope

应对
Meaning
to deal effectively with something difficult
Example
She had to cope with a lot of pressure at work.
她不得不应对工作中的巨大压力。
C1 noun /kənˈteɪdʒən/

contagion

传染
Meaning
The communication of disease from one person to another by close contact; also the spread of harmful ideas or behaviors.
Example
Fear spread like a contagion through the crowd.
恐惧像传染一样在群众中传播开来。
A1 noun /tʃiːz/

Cheese

奶酪
Meaning
a food made from the pressed curds of milk; used for photography to make people smile
Example
She added grated cheese to the pasta for extra flavor.
她把磨碎的奶酪加到意大利面中，增加了风味。
A1 noun /klɒk/

Clock

时钟
Meaning
an instrument used to indicate, keep, and co-ordinate time
Example
The clock on the wall shows three o'clock.
墙上的时钟显示三点。
B2 noun /ˈkʌm.pəs/

Compass

罗盘
Meaning
an instrument for finding direction with a magnetic needle pointing to magnetic north
Example
The hiker used a compass to find the right direction.
登山者使用罗盘来寻找正确的方向。
B2 adjective /kɒzˈmɛt.ɪk/

cosmetic

化妆品
Meaning
relating to beauty or appearance; intended to improve looks
Example
She bought a new cosmetic cream for her skin.
她为她的皮肤买了一种新的化妆品。
B2 verb /ˈkaʊnsəl/

counsel

咨询
Meaning
to give professional advice or guidance to someone
Example
The teacher counseled the students on their career choices.
老师为学生们提供了关于他们职业选择的建议。
A2 noun/verb /ˈsɜːrkəl/

circle

圆圈
Meaning
a round shape; to move all the way around something
Example
The children sat in a circle.
孩子们坐成了一个圈。
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。
C1 verb /kənˈkɜːr/

concur

同意
Meaning
To agree with someone or something.
Example
I concur with your opinion on this matter.
我同意您在这个问题上的观点。
B2 noun /ˈkæməˌflɑːʒ/

camouflage

伪装
Meaning
the act of hiding or disguising something by making it blend with its surroundings
Example
The soldiers used camouflage to hide from the enemy.
士兵们使用伪装来躲避敌人。
B2 verb /ˈkɒnvɪkt/

convict

判决
Meaning
to find someone guilty of a crime in a court of law
Example
The court convicted him of theft.
法院判定他偷窃有罪。
C1 noun /ˈkæv.əl.ri/

Cavalry

骑兵
Meaning
soldiers who fight on horseback; the part of an army formerly composed of troops on horseback
Example
The cavalry charged across the field with great speed.
骑兵以极快的速度冲过了田野。
C2 noun /koʊˈæɡjələnt/

coagulant

凝血剂
Meaning
a substance that causes blood or another liquid to clot
Example
The doctor applied a coagulant to stop the bleeding quickly.
医生使用了凝血剂来迅速止血。
B1 noun sɪvɪˈlɪzeɪʃənz

civilizations

文明
Meaning
The stage of human social development and organization that is considered most advanced.
Example
Ancient civilizations developed complex systems of governance.
古代文明发展了复杂的治理体系。
C2 verb /kənˈdʒɔɪn/

conjoin

联合
Meaning
to join together or unite; to combine
Example
The two rivers conjoin just before reaching the sea.
两条河流在到达大海之前汇合。
B1 noun /ˈsɜːr.kəmˌsˌtæn.sɪz/

Circumstances

情况
Meaning
the conditions that affect a situation, action, or event; facts or conditions connected with or relevant to an event
Example
Under normal circumstances, she would have arrived by now.
在正常情况下，她应该已经到了。
B2 noun /kəˈlɛktər/

collector

Meaning
a person who collects things as a hobby or job
Example
He is a stamp collector with thousands of rare items.
B2 verb /kəmˈpoʊz/

compose

创作
Meaning
to create music or writing; to make up; to calm oneself
Example
She composes beautiful songs.
她创作美丽的歌曲。
B2 verb /ˈkɒmbæt/

combat

对抗
Meaning
to fight against something, especially to reduce or stop it
Example
The government is taking steps to combat corruption.
政府正在采取措施来对抗腐败。
B1 noun /ˈkʊkər/

cooker

炊具; 电饭煲
Meaning
a device or appliance used for cooking food; a person or thing that cooks
Example
The rice cooker makes cooking meals much easier.
电饭煲让做饭变得更简单。
C1 adjective /ˌkætəˈɡɒrɪkəl/

categorical

绝对的
Meaning
Absolute and without exception; expressed clearly and directly.
Example
She gave a categorical denial of the allegations.
她对指控作出了绝对否认。
C1 verb /ˈkɒnsɔːrt/

consort

Meaning
To associate with someone, typically with disapproval; also, a spouse of a reigning monarch.
Example
He was criticized for consorting with criminals.
C1 noun /kʌˈstoʊ.di.ən/

Custodian

看门人; 守护者; 管理员
Meaning
a person who has responsibility for or looks after something; a caretaker or guardian
Example
The school custodian ensures that all buildings are clean and secure.
学校管理员确保所有建筑物干净和安全。
B1 adverb /ˈkloʊsli/

closely

幸福
Meaning
in a way that is very near in space, time, or relationship; carefully and attentively
Example
The detective examined the evidence closely.
当她获得奖项时，她无法掩饰自己的幸福。
C1 noun /kəˈloʊkwiəˌlɪzəm/

colloquialism

口语表达
Meaning
a word or phrase used in informal speech or writing
Example
The novel is full of regional colloquialisms.
这本小说充满了地区性的口语表达。
B1 noun /ˈkɒləm/

column

Meaning
A vertical structure that supports a building; also a section of text arranged vertically in a newspaper or table.
Example
The ancient temple had tall marble columns.
A2 noun /kəˈlek.ʃən/

Collection

收藏；合集；档案
Meaning
a group of objects gathered together; the action or process of collecting
Example
She has an impressive collection of vintage books in her library.
她在她的图书馆里有一部令人印象深刻的古籍收藏。
C2 adjective /sɛnˈsɔːriəs/

censorious

过分挑剔
Meaning
severely critical of others
Example
She was always censorious about her colleagues' mistakes.
她总是对同事们的错误非常挑剔。
C1 noun /ˈkɔːkəs/

caucus

政治会议
Meaning
A meeting of members of a political party to select candidates or decide policy.
Example
The party held a caucus to nominate their candidate for president.
政党举行了一个会议，提名他们的总统候选人。
C1 adjective /klæd/

clad

穿戴 / 覆盖
Meaning
dressed or covered in a particular way
Example
The knight was clad in shining armor.
骑士穿戴着闪亮的盔甲。
C1 verb /ˌkɒntrəˈviːn/

contravene

违背
Meaning
to go against or act in opposition to a law, rule, or agreement
Example
He contravened the safety regulations and was fined.
他违反了安全规定并被罚款。
B2 noun kəˈmɪʃ.ən

commission

委员会
Meaning
An official group of people entrusted by a government with a particular function.
Example
The commission recommends constitutional reforms.
委员会建议进行宪法改革。
A1 adjective /kloʊzd/

closed

关闭
Meaning
not open; shut
Example
The store is closed on Fridays.
商店星期五关闭。
A2 adjective ˈkʌmftəbəl

comfortable

舒适
Meaning
Giving a feeling of physical ease and relaxation; free from hardship or unpleasant conditions.
Example
Urban planning aims to make cities more comfortable.
城市规划旨在使城市更加舒适。
A2 noun /klaʊn/

Clown

小丑; 一个搞笑的表演者，特别是在马戏团中，穿着传统的服装和夸张的化妆
Meaning
a comic entertainer, especially one in a circus, wearing a traditional costume and exaggerated makeup
Example
The children laughed loudly at the funny clown's silly antics.
孩子们大声笑着，看着那个有趣的小丑的傻乎乎的动作。
C2 noun /ˌkɒnfəˈriː/

conferee

会议参与者
Meaning
a person who takes part in a conference
Example
Each conferee received a badge at the registration desk.
每个会议参与者在注册桌上都收到了一枚徽章。
C1 noun ˈkɑːr.bən ˌsiː.kwəˈstreɪ.ʃən

carbon sequestration

碳封存
Meaning
The process of capture and long-term storage of atmospheric carbon dioxide to mitigate or defer global warming.
Example
Forests play a key role in carbon sequestration.
森林在碳封存中发挥关键作用。
B1 noun ˈkeɪ.bəl

cable

电缆
Meaning
A thick rope of wire or nonmetallic fiber, typically used for construction, mooring ships, or transmitting electricity or telecommunication signals.
Example
The cable connects countries across continents.
电缆连接跨越各大洲的国家。
B1 noun /ˈkɒtən/

cotton

幸福
Meaning
A soft white fibrous substance used to make cloth and thread.
Example
This shirt is made of pure cotton.
当她收到奖项时，她无法掩饰自己的幸福。
C1 adjective ˈkɒn.və.luː.tɪd

convoluted

复杂
Meaning
Extremely complex and difficult to follow; twisted or intricate.
Example
His argument was so convoluted that no one understood it.
他的论点如此复杂，以至于没有人理解它。
B1 noun /kriˈeɪ.ʃən/

Creation

创作; 作品
Meaning
the action or process of bringing something into existence; something that has been made or invented
Example
The artist's latest creation was displayed at the modern art gallery.
这位艺术家的最新创作被展示在现代艺术画廊。
C1 verb /ˈkʌn.dʒər/

conjure

召唤
Meaning
to summon something as if by magic; to imagine vividly
Example
The magician conjured a rabbit out of the hat.
魔术师从帽子里召唤出了一只兔子。
B2 noun /ˈkɔːtruːm/

courtroom

Meaning
a room in which legal cases are heard and decided by a judge
Example
The witness was called to testify in the courtroom.
A1 verb, noun /kraɪ/

cry

Meaning
To shed tears as an expression of emotion such as sadness or pain; also a loud call or shout.
Example
The baby began to cry when she was hungry.
A2 adjective, noun /ˈkloʊsər/

closer

更近，结束者
Meaning
more near in distance or relationship; someone or something that concludes an activity
Example
She moved closer to the window.
她走得更靠近窗户。
B2 adverb /ˈtʃiːfli/

chiefly

主要
Meaning
mainly; primarily
Example
The festival is celebrated chiefly by young people.
这个节日主要由年轻人庆祝。
B1 verb /tʃɒp/

chop

切
Meaning
to cut with a sharp tool; to cut into pieces
Example
She chops vegetables for dinner.
她为晚餐切蔬菜。
C2 noun /ˈklæpər/

clapper

钟内的金属部件，敲击钟体发出声音
Meaning
The free-swinging metal piece inside a bell that strikes it to produce sound.
Example
The clapper inside the bell was broken.
钟内的金属部件坏了。
C2 verb /ʧeɪf/

chafe

Meaning
To make or become sore by rubbing; to feel irritation or impatience.
Example
The tight shoes began to chafe his heels.
B2 noun /ˈkeɪ.ɒs/

Chaos

混乱; 无序; 混沌
Meaning
complete disorder and confusion; a state of total confusion with no order
Example
The earthquake caused chaos in the city as buildings collapsed and people panicked.
地震造成了城市的混乱，建筑物倒塌，人们陷入恐慌。
A2 noun /ˈkʊki/

cookie

饼干
Meaning
a small sweet baked food, usually with flour, sugar, and butter
Example
She offered me a chocolate chip cookie.
她给我提供了一块巧克力曲奇。
A2 noun /ˈtʃælɪndʒɪz/

challenges

挑战
Meaning
Difficult tasks or situations that test someone's abilities or resources.
Example
Overcoming challenges is the key to personal growth.
克服挑战是个人成长的关键。
C2 noun /ˈkɔːrnɪs/

cornice

檐口
Meaning
an ornamental molding around the wall of a room just below the ceiling
Example
The elegant cornice added a classical touch to the living room.
优雅的檐口为客厅增添了一份古典的气息。
C2 adjective /ˌkɒn.tjʊˈmeɪ.ʃəs/

contumacious

固执的, 叛逆的
Meaning
stubbornly disobedient or rebellious
Example
The contumacious student refused to follow the school rules.
那位固执的学生拒绝遵守学校的规章制度。
C2 noun /kəˈkɒfəni/

cacophony

刺耳的噪音
Meaning
A harsh, discordant mixture of sounds.
Example
The cacophony of horns made it impossible to concentrate.
喇叭的刺耳声音使人无法集中注意力。
C1 noun kəˈlæt.ər.əl

collateral

作为贷款担保的财产
Meaning
Something pledged as security for repayment of a loan, to be forfeited in the event of a default.
Example
The bank requires collateral for loan approval.
银行要求贷款批准时提供担保物品。
B2 noun ˈkɔːrəl ˈriːfs

Coral Reefs

珊瑚礁
Meaning
Underwater structures made from calcium carbonate secreted by corals, forming diverse marine ecosystems.
Example
Saint Martin's Island is known for its coral reefs.
圣马丁岛以其珊瑚礁而闻名。
C1 noun /ˈkruːsɪbəl/

crucible

严峻考验，熔炉
Meaning
a severe test or trial; a container used for heating substances to very high temperatures
Example
The team emerged stronger from the crucible of competition.
团队从竞争的熔炉中走了出来，变得更强大。
B1 noun /tʃiːk/

Cheek

脸颊; 无礼;
Meaning
either side of the face below the eye; impudent or disrespectful behavior
Example
The baby's rosy cheeks showed she was healthy and happy.
宝宝的红润脸颊显示她健康快乐。
C2 noun /ˈkruːɪt/

cruet

小容器
Meaning
a small container, especially for salt, pepper, oil, or vinegar, used at a dining table
Example
She filled the cruet with olive oil for the salad.
她将橄榄油倒入调味瓶中，为沙拉准备。
B1 adjective /kənˈvɪnst/

convinced

确信的
Meaning
completely certain or sure about something
Example
She was convinced that he was telling the truth.
她确信他在说实话。
C2 noun /kwɑːˈfjʊr/

coiffure

发型
Meaning
A person's hairstyle, typically an elaborate one.
Example
Her elegant coiffure impressed everyone at the party.
她优雅的发型让聚会上的每个人都印象深刻。