C2 noun /ˈkætɪtʃuː/

Catechu

凯特楚

Meaning

an extract from a tropical Asian plant, used in tanning and dyeing

Example

Catechu extract is commonly used in traditional medicine.

凯特楚提取物通常用于传统医学中。

C2 noun /kəˈrɑːləri/

corollary

直接或自然的结果

Meaning

a direct or natural consequence or result

Example

One corollary of the new policy was increased public awareness.

新政策的一个结果是公众意识的提高。

C2 verb /kənˈdjuːs/

conduce

有助于

Meaning

To help bring about a particular result; to contribute to something.

Example

Regular exercise conduces to better health.

定期锻炼有助于更好的健康。

C1 verb /ˈkrɪstəlaɪz/

crystallize

结晶

Meaning

to form crystals; to make an idea or plan clear and definite

Example

Her vague thoughts began to crystallize into a solid plan.

她模糊的思绪开始在一个明确的计划中结晶。

B2 noun /kɔːrps/

corpse

尸体

Meaning

a dead body, especially of a human

Example

The police discovered a corpse in the abandoned house.

警察在废弃的房子里发现了一具尸体。

B2 phrase kəˈlek.tɪv ˈæk.ʃən

collective action

集体行动

Meaning

Action taken by a group of people working together toward a common goal or purpose.

Example

Collective action is needed to mitigate climate change.

集体行动对于减缓气候变化很重要。

C1 noun /kənˈvʌl.ʃən/

convulsion

抽搐

Meaning

a sudden, violent, involuntary contraction of muscles; a seizure

Example

The medicine helped prevent convulsions in children.

药物帮助预防儿童的抽搐。

B2 noun /kəˈroʊnə/

corona

一种类似于冠状的结构；也指太阳的外层大气

Meaning

a crown or crown-like structure; also refers to the outer atmosphere of the sun

Example

The sun's corona was visible during the total solar eclipse.

太阳的日冕在一次全日蚀时可见。

A2 adjective /ˈtʃɪə.fəl/

Cheerful

愉快的; 乐观的; 充满喜悦

Meaning

happy and optimistic; full of joy and good spirits; bright and lively

Example

She has a cheerful personality that brightens everyone's day.

她有一个愉快的个性，照亮了每个人的日子。

C1 noun /ˌkɔr.diˈæl.ɪ.ti/

Cordiality

热情; 友善

Meaning

sincere affection and kindness; warm and friendly behavior

Example

The host's cordiality made all the guests feel welcome and comfortable.

主人的热情使所有客人都感到受欢迎和舒适。

B1 noun /kəʊst/

Coast

海岸

Meaning

the part of the land near the sea; the edge of the land

Example

We drove along the coast to enjoy the view.

我们沿着海岸开车，享受美景。

B2 noun /kənˈfɛkʃəneri/

confectionery

糖果店

Meaning

sweets, candies, and other food items made with sugar

Example

The shop sells a wide variety of confectionery.

商店出售各种各样的糖果。

C1 noun /ˌkɒnvəˈlɛsns/

convalescence

康复期

Meaning

the period of time spent recovering from an illness or medical treatment

Example

His convalescence lasted for almost two months after the accident.

事故后的康复期持续了近两个月。

A2 noun /ˈkoʊkənʌt/

Coconut

椰子

Meaning

a large brown seed with hard shell containing white flesh and coconut water

Example

We drank coconut water directly from the coconut.

我们直接从椰子里喝椰子水。

C1 noun/adjective /klɛft/

cleft

裂缝

Meaning

a split or crack; a space or opening made by cleavage

Example

The goat disappeared into a cleft in the rocks.

山羊消失在岩石中的裂缝里。

A2 noun /ˈkʌm.fərt/

Comfort

舒适; 安逸

Meaning

a state of physical ease and freedom from pain or constraint; relief from distress or anxiety

Example

The soft sofa provided great comfort after a long day at work.

柔软的沙发在长时间工作后提供了极大的舒适感。

C1 noun /səˈvɪləti/

civility

文明

Meaning

Polite and courteous behavior.

Example

He treated his opponent with civility despite their differences.

他以文明礼貌对待他的对手，尽管他们之间存在差异。

B2 noun /ˈkɒl.ər/

Collar

项圈

Meaning

a band of material around the neck; in jewelry context, a close-fitting necklace

Example

She wore an elegant pearl collar to the formal dinner.

她在正式晚宴上戴了一条优雅的珍珠项圈。

B2 noun ˈkrɪt.ɪ.kəl ˈθɪŋ.kɪŋ

critical thinking

批判性思维

Meaning

The objective analysis and evaluation of an issue in order to form a judgment.

Example

Critical thinking helps in making informed decisions.

批判性思维有助于做出明智的决定。

C1 adjective /ˈkjuːmjələtɪv/

cumulative

累积的

Meaning

Increasing gradually by addition; growing in quantity, force, or effect.

Example

The cumulative effect of stress can harm your health.

压力的累积效应可能对您的健康造成伤害。

A2 noun /ˈkɒmədi/

comedy

喜剧

Meaning

A type of entertainment that is intended to make people laugh.

Example

We watched a hilarious comedy at the theater.

我们在剧院看了一场有趣的喜剧。

C1 noun /ˈkroʊniˌɪzəm/

cronyism

裙带关系

Meaning

The practice of favoring friends or associates, especially in political appointments or business deals.

Example

The company was accused of cronyism in hiring practices.

该公司因招聘中的裙带关系而受到指控。

B2 noun /ˌkɒrəˈleɪʃən/

correlation

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。

C1 noun /ˈkʌl.ən.dər/

Colander

漏网

Meaning

a bowl-shaped kitchen utensil with holes in it used for draining food such as pasta or rice

Example

She drained the pasta using a colander.

她用漏网把意大利面排水了。

B1 noun /kəˌmjunɪˈkeɪʃən/

communication

沟通

Meaning

The act or process of using words, sounds, signs, or behaviors to express or exchange information or to express your ideas, thoughts, feelings, etc.

Example

Effective communication is crucial for any successful project.

有效的沟通对任何成功的项目都至关重要。

C1 adjective, verb, noun /ˈkaʊntərfɪt/

counterfeit

伪造的

Meaning

made to look like something genuine in order to deceive

Example

The police seized a batch of counterfeit currency.

警方查获了一批伪钞。

B1 noun kəˈmɪt.mənt

commitment

承诺

Meaning

A promise or firm decision to do something; the state or quality of being dedicated to a cause or activity.

Example

The president reaffirmed his commitment to environmental protection.

总统重申了他对环境保护的承诺。

C1 noun /tʃæmp/

champ

冠军 / 胜利者

Meaning

an informal word for champion or winner.

Example

He is the new champ of the boxing tournament.

他是拳击比赛的新冠军。

A2 verb /kənˈfjuːz/

confuse

混淆

Meaning

To make someone unable to think clearly; to bewilder.

Example

The complex instructions confused the students.

复杂的指示使学生感到困惑。

B1 adjective /kəˈmɪtɪd/

committed

致力的

Meaning

Dedicated and loyal to a cause, activity, or relationship.

Example

She is a committed teacher who cares deeply for her students.

她是一位致力于教学的老师，深切关心她的学生。

B2 verb /kənˈsɜːrv/

conserve

节约

Meaning

to protect something from harm or destruction; to use resources carefully to avoid waste

Example

We must conserve water during the dry season.

我们必须在干旱季节节约水。

A2 adjective /kənˈfjuːzd/

confused

困惑的

Meaning

unable to think clearly; uncertain or puzzled

Example

She felt confused by the complicated instructions.

她被复杂的指示弄得很困惑。

C1 noun /ˈkrɛvɪs/

crevice

裂缝

Meaning

a narrow crack or opening, especially in a rock or wall

Example

The lizard hid in a crevice between the stones.

蜥蜴藏在石头之间的裂缝中。

B2 noun /kaʊtʃ/

Couch

沙发

Meaning

a long upholstered seat for more than one person, typically with a back and arms

Example

The family gathered on the couch to watch a movie.

全家人坐在沙发上看电影。

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。

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。

C1 noun /ˌkɒrəˈneɪʃən/

coronation

加冕礼

Meaning

the act or ceremony of crowning a sovereign or monarch

Example

The coronation of the new king was attended by thousands of people.

新国王的加冕礼有成千上万的人参加。

B1 noun/verb /koʊd/

code

代码

Meaning

a system of words, letters, or symbols used to represent information or instructions

Example

He wrote a code to solve the problem on the computer.

他写了一个代码来解决电脑上的问题。

C2 noun /kəˈliːdʒən/

collegian

大学生

Meaning

a student of a college

Example

The collegians were preparing for the cultural festival.

大学生们正在为文化节做准备。

B2 noun /kənˈsɛʃən/

concession

让步

Meaning

something that is granted, especially in response to demands; a compromise

Example

The company made several concessions during the negotiations.

公司在谈判中做出了几次让步。

A2 noun tʃɔɪs

choice

选择

Meaning

An act of selecting or making a decision when faced with two or more possibilities.

Example

Choice enhances decision-making.

选择增强决策能力。

B2 adjective /ˈtʃuː.zi/

Choosey/Choosy

挑剔的; 非常挑选的; 对喜欢或接受的东西非常挑剔

Meaning

very careful in choosing; selective; particular about what one likes or accepts

Example

He's very choosy about the restaurants where he eats.

他对他吃的餐馆非常挑剔。

C1 verb /ˈkriːmeɪt/

cremate

火化

Meaning

to burn a dead body to ashes as a funeral rite

Example

According to his wishes, they cremated his body after the funeral.

按照他的意愿，他们在葬礼后火化了他的遗体。

C1 noun /kəˈmændər ɪn tʃiːf/

Commander-in-chief

最高指挥官

Meaning

the supreme leader of a nation's armed forces

Example

The president serves as the commander-in-chief of the military.

总统担任军队的最高指挥官。

A2 noun/verb /kənˈsɜːrn/

concern

Meaning

to relate to or affect; a matter of worry or interest

Example

Environmental issues concern all of us.

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。

B2 adjective /kənˈvɜːrtəbl/

convertible

敞篷车, 有可折叠车顶的汽车

Meaning

able to be changed into a different form or use; also a car with a roof that can be folded down

Example

She drove her new convertible along the coastal road.

她开着她的新敞篷车沿着海岸公路行驶。

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。

B2 noun /krɑk pɑt/

Crock pot

慢炖锅

Meaning

an electric cooking pot that cooks food slowly at low temperatures

Example

I put the chicken and vegetables in the crock pot before going to work.

我在上班前把鸡肉和蔬菜放入慢炖锅中。

C2 verb /kənˈtɛm/

contemn

轻视

Meaning

to treat or regard with disdain, scorn, or contempt

Example

He would never contemn honest work, no matter how humble.

他绝不会轻视诚实的工作，无论它多么卑微。

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。

B1 noun /ˈkɒtɪdʒ/

cottage

小屋

Meaning

a small simple house, typically in the countryside

Example

They spent their vacation in a cozy cottage by the lake.

他们在湖边的一座舒适的小屋里度过了假期。

A2 adjective /kənˈfjuːzɪŋ/

confusing

令人困惑的

Meaning

causing someone to be unable to think clearly or understand; difficult to comprehend

Example

The instructions were confusing and hard to follow.

这些说明令人困惑，很难遵循。

B2 noun /ˌkoʊəˈlɪʃən/

coalition

联盟

Meaning

a temporary alliance of distinct parties, persons, or states for joint action

Example

Several parties formed a coalition to pass the new law.

几个党派组成了一个联盟来通过新法律。

C2 noun /ˌkɒnvəˈluːʃən/

convolution

卷曲，复杂的转折或结构

Meaning

a twist, coil, or a complex and intricate shape or arrangement

Example

The brain has many convolutions that increase its surface area.

大脑有许多卷曲的形状，增加了其表面积。

B2 adjective, noun /ˈkɑːmənpleɪs/

commonplace

常见的

Meaning

ordinary or unremarkable; something that is usual or commonly found

Example

Smartphones have become commonplace in modern life.

智能手机已成为现代生活中的常见事物。

B2 noun /ˈkæriər/

carrier

承运人

Meaning

A person or thing that carries, transports, or conveys something; also an organization that provides transport services.

Example

The airline is the largest carrier in the country.

航空公司是该国最大的承运人。

C1 noun /ˈkʌˈs.tə.di/

Custody

监护; 拘留; 保护

Meaning

the protective care or guardianship of someone or something; imprisonment or detention

Example

After the divorce, they shared custody of their children equally.

离婚后，他们平等地分享了孩子的监护权。

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。

B1 verb /kəˈmɪt/

commit

Meaning

To carry out or perpetrate an act; to pledge or bind to a course of action.

Example

He committed a serious mistake in the report.

A2 verb /kənˈteɪn/

contain

包含

Meaning

to have or include within; to restrain or control

Example

This box contains important documents.

这个盒子包含重要的文件。

B2 noun /ˈkrɪtɪk/

critic

评论家

Meaning

A person who judges the merits of something, especially art or literature

Example

The film critic praised the director's latest movie.

电影评论家赞扬了导演的最新电影。

B2 noun /ˌkɑn.trəˈdɪk.ʃən/

Contradiction

矛盾; 不一致

Meaning

a combination of statements, ideas, or features which are opposed to one another; inconsistency

Example

There was a clear contradiction between his words and his actions.

他的言辞与行动之间存在明显的矛盾。

C1 noun /kənˈtɛnʃən/

contention

争议, 分歧

Meaning

heated disagreement or argument; a point asserted in debate

Example

The main contention between the two parties was over tax reform.

两党之间的主要争议是关于税务改革。

C1 noun /ˈkeɪ.sɪŋ/

Casing

外壳; 外罩

Meaning

a cover or shell that protects or encloses something

Example

The mechanic removed the engine casing to examine the internal parts.

机械师拆下了发动机外壳以检查内部零件。

B1 noun /kɑːrt/

Cart

手推车

Meaning

a wheeled vehicle for carrying goods; a shopping cart

Example

The farmer loaded hay onto his cart.

农民把干草装上了他的手推车。

B1 noun /sɛl/

cell

细胞 / 单元格

Meaning

a small basic unit of life; or a small enclosed space like a prison room

Example

The prisoner was locked in a small cell.

囚犯被锁在一个小牢房里。

C1 verb /kənˈkɒkt/

concoct

混合或发明

Meaning

to make something, especially food or a story, by mixing or inventing

Example

He concocted a story to explain his absence.

他编造了一个故事来解释他的缺席。

B2 adjective ˈkʌl.ɪ.nər.i

culinary

烹饪的

Meaning

Related to cooking or the preparation of food, especially in a sophisticated or professional manner.

Example

Culinary advancements enhance the dining experience.

烹饪的进步提升了用餐体验。

B2 adjective /ˈkræŋki/

cranky

脾气暴躁

Meaning

bad-tempered, easily annoyed, or irritable

Example

The child gets cranky when he is hungry.

当孩子饿了时，他会变得脾气暴躁。

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。

B1 noun, verb /ˈkɒndʌkt/ (noun), /kənˈdʌkt/ (verb)

conduct

Meaning

to organize or carry out; or a person's behavior

Example

The teacher conducted the exam fairly.

B1 noun /ˈker.ləs.nəs/

Carelessness

疏忽; 粗心

Meaning

failure to give sufficient attention to avoiding harm or errors

Example

His carelessness with money led to serious financial problems.

他在金钱上的疏忽导致了严重的财务问题。

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 adjective /ˈkælkjʊləbl/

calculable

可计算的

Meaning

Capable of being calculated, estimated, or measured.

Example

The risk involved in the project is calculable.

项目中的风险是可以计算的。

C2 adjective /kəˈmɛnʃərət/

commensurate

相称的

Meaning

corresponding in size, degree, or extent; proportionate

Example

Salary will be commensurate with experience.

薪资将与经验相称。

C1 noun /kəmˈpʌl.ʃən/

Compulsion

强迫; 强制;

Meaning

the action or state of forcing or being forced to do something; an irresistible urge to behave in a certain way

Example

He felt a strong compulsion to check his phone every few minutes.

他感到强烈的冲动，每隔几分钟就检查一次手机。

B1 noun /ˌkæl.kjəˈleɪ.ʃən/

Calculation

计算

Meaning

a mathematical determination of the size or number of something

Example

His calculation of the total cost was accurate to the penny.

他的总成本计算准确到分。

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 noun /tʃeɪndʒ/

change

变化

Meaning

The act or instance of making or becoming different.

Example

Change is inevitable for growth.

变化对成长来说是不可避免的。

C2 adjective /ˈtʃɜːrlɪʃ/

churlish

粗鲁

Meaning

Rude in a mean-spirited and surly way.

Example

It would be churlish to refuse her kind invitation.

拒绝她亲切的邀请将是粗鲁的。

C1 verb /siːd/

cede

放弃

Meaning

to give up power, territory, or rights to another

Example

The country ceded territory after losing the war.

这个国家在输了战争后，放弃了领土。

C1 noun /kənˈspɪrə.tər/

conspirator

阴谋者

Meaning

a person who secretly plans with others to do something unlawful or harmful

Example

The conspirator was arrested before the plan could be carried out.

阴谋者在计划得以实施之前被捕。

B1 noun /ˈkriːtʃər/

creature

生物

Meaning

A living being, especially an animal.

Example

The forest is full of strange creatures.

森林里充满了奇怪的生物。

C1 noun ˌkɒm.pjʊˈteɪ.ʃən

computation

计算

Meaning

The action of mathematical calculation.

Example

Complex computation is required for AI models.

复杂的计算对AI模型来说是必须的。

B2 adjective kɒnˈtek.stju.əl

contextual

情境的

Meaning

Depending on or relating to the circumstances or setting; context-dependent.

Example

Contextual meaning changes depending on usage.

上下文意义根据使用情况而变化。

C1 noun /koʊˈhɪr.əns/

coherence

一致性

Meaning

The quality of being logical and consistent; forming a unified whole.

Example

The essay lacked coherence, making it hard to follow.

这篇文章缺乏一致性，难以理解。

C1 adjective /kɑːrˈnɪv.ər.əs/

Carnivorous

食肉动物

Meaning

feeding on other animals; meat-eating

Example

Lions are carnivorous animals that hunt other animals for food.

狮子是食肉动物，它们捕猎其他动物作为食物。

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 verb /kənˈsʌlt/

consult

咨询

Meaning

To seek advice or information from someone with expertise.

Example

You should consult a doctor before starting the treatment.

在开始治疗之前，你应该咨询医生。

B1 noun /ˌkɒn.trɪˈbjuː.ʃən/

contribution

贡献

Meaning

A gift or payment to a common fund or collection.

Example

His contribution to the project was vital.

他的贡献对项目至关重要。

C1 adjective /kəˈθɑːr.tɪk/

cathartic

宣泄的

Meaning

Providing psychological relief through the open expression of strong emotions.

Example

Writing about emotions can be a cathartic experience.

写下情感可能是一次宣泄的体验。

A2 verb /kənˈtɪn.juːd/

continued

继续

Meaning

Kept happening or carried on without stopping.

Example

She continued working despite the challenges.

她继续工作，尽管面临挑战。

C1 adjective ˌkaʊntəprəˈdʌktɪv

counterproductive

适得其反

Meaning

Having the opposite of the desired effect; tending to hinder rather than help.

Example

Counterproductive activities often stem from dissatisfaction.

反生产力的活动通常来源于不满。

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 /ˈkɒnskrɪpt/

conscript

强迫某人参军

Meaning

to force someone into military service

Example

The government conscripted young men during the war.

政府在战争期间征召了年轻人。

B2 noun /ˈkʌlprɪt/

culprit

罪犯

Meaning

a person who is responsible for a crime or misdeed

Example

The police caught the culprit behind the robbery.

警察抓住了抢劫案背后的罪犯。

C2 noun /ˈkæbəˌlɪzəm/

cabalism

卡巴利主义

Meaning

The doctrines, practices, or secretive dealings of a cabal.

Example

The historian wrote extensively about cabalism in the royal court.

历史学家在王室宫廷中广泛写作关于卡巴利主义的内容。

C2 adjective /kənˈkɒmɪtənt/

concomitant

伴随的

Meaning

Naturally accompanying or associated with something.

Example

Increased stress is often concomitant with long working hours.

增加的压力通常与长时间的工作时间并存。

B2 noun kənˈsen.səs

consensus

共识

Meaning

A general agreement among all members of a group.

Example

Consensus was reached after long deliberation.

经过长时间的讨论，达成了共识。

B2 noun /ˈkaʊn.tər/

counter

柜台

Meaning

a flat surface in a shop, bank, or kitchen where transactions or work are done

Example

The cashier stood behind the counter.

收银员站在柜台后面。

B1 adjective /kənˈtroʊld/

controlled

受控的

Meaning

managed or regulated carefully; kept within limits

Example

The experiment was conducted in a controlled environment.

实验是在一个受控的环境中进行的。

A2 verb tʃeɪs

chase

追逐

Meaning

To pursue in order to catch or overtake; to follow rapidly or eagerly

Example

Don't chase two rabbits at once.

不要同时追两只兔子。

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。

B2 noun kjuːz

cues

线索

Meaning

Signals or hints from conversation or environment that help understanding

Example

Facial expressions provide cues about a person's emotions.

面部表情提供关于一个人情绪的线索。

C2 verb /kɔːk/

calk

堵塞船只的裂缝

Meaning

To make a boat or ship watertight by filling seams or cracks.

Example

The workers calked the seams of the old boat to prevent leaks.

工人们对旧船的缝隙进行了填塞，以防止泄漏。

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。

A2 adjective kɑːm

calm

平静

Meaning

Not showing or feeling nervousness, anger, or other strong emotions; peaceful.

Example

The calm environment supports healing.

安静的环境有助于康复。

C2 noun /ˈkæθoʊd/

cathode

负极

Meaning

The negative electrode in a device such as a battery or tube, where electrons enter.

Example

The cathode emits electrons in the tube.

阴极在管中发射电子。

C1 noun /kliːˈʃeɪ/

cliche

陈词滥调

Meaning

An overused expression or idea that has lost its originality or impact.

Example

The speech was filled with old clichés that failed to inspire the audience.

演讲中充满了老套的陈词滥调，未能激发观众的兴趣。

C2 noun /kɪˈrɒpədɪst/

chiropodist

足病医生

Meaning

A healthcare professional who diagnoses and treats foot problems.

Example

The chiropodist treated her painful corns and calluses.

足病医生治疗了她痛苦的鸡眼和老茧。

C1 adjective /kənˈteɪ.dʒəs/

Contagious

传染性; 有感染力

Meaning

likely to spread to and affect others; infectious

Example

Her laughter is contagious and makes everyone smile.

她的笑声具有传染性，让每个人都微笑。

C1 noun /kəˈθɑːrsɪs/

catharsis

情感宣泄

Meaning

The process of releasing strong emotions, providing relief.

Example

Writing in her diary was a form of catharsis for her.

在她的日记中写作对她来说是一种情感宣泄的方式。

C2 verb /ˌkɒmənˈdɪə/

commandeer

强行占领

Meaning

To take control or possession of something, often by force or authority.

Example

The soldiers commandeered the villagers’ homes during the war.

战争期间，士兵们强行占领了村民的家。

B2 noun /ˈkɒmənˌteɪtər/

commentator

解说员

Meaning

a person who reports and discusses events, especially on TV or radio

Example

The commentator described the football match in detail.

解说员详细描述了足球比赛。

C1 verb /kliːv/

cleave

劈开, 切割

Meaning

to split or divide; to cut through forcefully

Example

He used an axe to cleave the wood.

他用斧头劈开木材。

B2 noun ˈkɑː.bən

carbon

碳

Meaning

The chemical element of atomic number 6, occurring as diamond, graphite, and charcoal.

Example

Carbon emissions must be controlled.

碳排放必须得到控制。

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 adjective /ˈkɜːrtiəs/

courteous

有礼貌的

Meaning

polite, respectful, or considerate in manner

Example

The staff at the hotel were very courteous to all guests.

酒店的员工对所有客人都非常有礼貌。

C2 noun /kæd/

Cad

坏蛋; 粗鲁

Meaning

a man who behaves dishonorably, especially toward women

Example

Everyone at the party avoided him because he was known to be a cad.

派对上的每个人都避开了他，因为他以一个坏蛋著称。