cop
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
B1 noun /kɒp/

cop

警察
Meaning
a police officer (informal)
Example
The cop stopped the car for speeding.
警察因超速而拦下了那辆车。
B2 noun /ˈkæp.sɪ.kəm/

Capsicum

甜椒
Meaning
sweet pepper; bell pepper; colorful vegetable used in cooking
Example
Add red and green capsicum to make the dish colorful and nutritious.
加入红色和绿色的甜椒，使菜肴既色彩丰富又营养丰富。
C1 noun /kənˈfɛdərəsi/

confederacy

联邦
Meaning
a group of states, people, or organizations united for a common purpose
Example
The southern states formed a confederacy during the civil war.
南方各州在内战期间组成了联邦。
B2 noun /ˈkɒmpɪtəns/

competence

能力
Meaning
the ability to do something successfully or efficiently
Example
Her competence as a manager impressed the board.
作为经理，她的能力给董事会留下了深刻印象。
B1 noun /kæmˈpeɪn/

Campaign

运动
Meaning
an organized course of action to achieve a particular goal; a series of military operations
Example
The environmental campaign successfully raised awareness about climate change.
环保运动成功提高了人们对气候变化的认识。
A2 noun /ˈsɛlˌfoʊn/

cellphone

手机
Meaning
a portable telephone that uses a cellular network for wireless communication
Example
She forgot her cellphone at home and couldn’t call anyone.
她把手机忘在家里了，没法给任何人打电话。
B1 noun ˈtʃeə.pɜː.sən

chairperson

主席
Meaning
A person who is in charge of a meeting or organization; the presiding officer of a committee, board, or organization.
Example
The chairperson ensures procedural integrity.
主席确保程序的完整性。
C1 adjective /kəmˈplaɪənt/

compliant

顺从
Meaning
Willing to agree with or follow rules, requests, or demands.
Example
She was compliant with all the safety requirements.
她遵守了所有安全要求。
C2 noun /ˌkɑːrt ˈblɑːnʃ/

carte blanche

Meaning
complete freedom to act as one wishes
Example
The manager gave her team carte blanche to design the project.
B2 noun /kreɪn/

Crane

鹤
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。
B2 noun/adjective /səˈvɪliən/

civilian

平民
Meaning
a person not in the armed forces or police
Example
The area was evacuated to protect the civilians.
该区域已被疏散以保护平民。
C2 noun /kəˈdɛnzə/

cadenza

精心准备的独奏段落
Meaning
An elaborate solo passage in a piece of music, usually near the end.
Example
The pianist performed a brilliant cadenza before the final movement.
钢琴家在最后一个乐章之前演奏了一段精彩的卡登扎。
C2 noun /ˈtʃaɪ.nə roʊz/

China-rose

朱槿
Meaning
a tropical flowering plant with large, showy flowers in various colors
Example
The bright red China-rose flowers decorated the entrance of the house.
鲜红的朱槿花装饰了房子的入口。
C2 noun /ˈkɔːldrən/

caldron

大铁锅
Meaning
A large metal pot used for boiling liquids or cooking over an open fire.
Example
The witch stirred her potion in a bubbling caldron.
女巫在一个冒泡的锅里搅拌她的药水。
B2 noun /ˌkɑm.pənˈseɪ.ʃən/

Compensation

补偿; 赔偿
Meaning
something given or received as an equivalent for services, debt, loss, injury, or suffering; payment or reward
Example
The company provided financial compensation to the workers injured in the accident.
公司向在事故中受伤的工人提供了经济补偿。
C2 verb /ˈkɒdʒɪteɪt/

cogitate

深思
Meaning
to think deeply about something; to meditate or reflect
Example
He sat by the river to cogitate on his future plans.
他坐在河边，思考他的未来计划。
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。
C1 adjective kəˈlɒs.əl

Colossal

巨大的
Meaning
Extremely large, gigantic, enormous in size or extent.
Example
The colossal pyramids of Egypt are a marvel of architecture.
埃及的巨大神庙是建筑学的奇迹。
C1 noun /ˈkændɪdnəs/

candidness

坦率
Meaning
The quality of being open, honest, and straightforward
Example
Her candidness during the meeting impressed everyone.
她在会议中的坦率给大家留下了深刻的印象。
C1 verb /kənˈfleɪt/

conflate

合并 / 混合
Meaning
To combine two or more things, often confusingly, into one.
Example
The article tends to conflate facts with opinions.
文章倾向于将事实和意见混为一谈。
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。
C1 adjective /ˌkɒnvəˈlɛsnt/

convalescent

恢复中的，正在从疾病或治疗中恢复
Meaning
recovering from an illness or medical treatment
Example
The hospital has a special ward for convalescent patients.
医院有一个特别的病房，供恢复中的病人使用。
C2 noun /ˈʃɑːrlətən/

charlatan

江湖郎中
Meaning
a person who pretends to have knowledge or skills that they do not really possess; a fraud
Example
The so-called healer was exposed as a charlatan.
那位自称为治愈者的人被揭露为一个江湖郎中。
C2 noun kəmˈpʌŋk.ʃən

compunction

悔恨
Meaning
A feeling of guilt or moral scruple that prevents or follows the doing of something bad.
Example
He felt compunction after lying to his friend.
他说谎后感到悔恨。
A2 adjective /ˈkraʊdɪd/

crowded

幸福
Meaning
filled with too many people or things
Example
The bus was so crowded that I could hardly move.
当她收到奖项时，她无法掩饰自己的幸福。
C2 verb /ˌsɜːrkəmˈnævɪɡeɪt/

circumnavigate

环绕地球
Meaning
to travel all the way around something, especially the earth
Example
Magellan was the first to circumnavigate the globe.
麦哲伦是第一个环绕地球航行的人。
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。
B2 adjective /ˈkeər.friː/

Carefree

无忧无虑; 轻松愉快;
Meaning
free from anxiety or responsibility; lighthearted; worry-free
Example
She lived a carefree life, traveling the world without any worries.
她过着无忧无虑的生活，环游世界没有任何担忧。
C2 adjective /kəˈkɒfənəs/

cacophonous

刺耳的声音
Meaning
Producing a harsh, discordant mixture of sounds.
Example
The cacophonous sounds of the city kept her awake all night.
城市的刺耳声音让她整晚都无法入睡。
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。
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 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。
C1 adjective /ˈkɔː.stɪk/

caustic

腐蚀性的, 尖刻的
Meaning
able to burn or corrode by chemical action; severely sarcastic
Example
Her caustic remarks hurt his feelings.
她尖刻的评论伤害了他的感情。
A2 noun /kɔːrs/

course

课程，路径或一组教育课程
Meaning
a direction, path, or a set of educational lessons
Example
She enrolled in a computer science course.
她报名参加了计算机科学课程。
C2 adjective /ˈkɑːrnəl/

carnal

肉体的
Meaning
Relating to physical, especially sexual, desires and appetites.
Example
The book explores the conflict between spiritual and carnal desires.
这本书探索了精神和肉体欲望之间的冲突。
B1 noun /kəmˈpænjən/

companion

伙伴
Meaning
a person or animal you spend time with or travel with
Example
He was my companion during the long journey.
他是我在漫长旅程中的伴侣。
A2 noun /klɔːθ/

Cloth

布料
Meaning
woven or felted fabric made from wool, cotton, or a similar fiber
Example
The tailor cut the cloth into precise pieces.
裁缝把布料剪成精确的片段。
C1 noun /ˈkʌn.stə.bəl/

constable

巡警
Meaning
a police officer of the lowest rank
Example
The constable directed traffic at the busy intersection.
巡警在繁忙的十字路口指挥交通。
B2 noun ˌkɒn.stɪˈtjuː.ʃən

constitution

宪法
Meaning
A body of fundamental principles or established precedents according to which a state is governed.
Example
Constitutional reforms ensure equity.
宪法改革确保公平。
B2 adjective /kəmˈpækt/

Compact

紧凑; 小巧且高效设计
Meaning
closely and neatly packed together; small and efficiently designed
Example
She bought a compact car that fits easily in small parking spaces.
她买了一辆紧凑型汽车，轻松停入小停车位。
C1 noun /ˈkaʊn.tə.nəns/

countenance

面容，表情；支持
Meaning
a person's face or expression; support or approval
Example
Her cheerful countenance brightened the room.
她那愉快的面容照亮了房间。
B1 noun/adjective /ˌkærəktəˈrɪstɪk/

characteristic

特征
Meaning
A distinguishing quality or feature of a person, place, or thing.
Example
Kindness is a characteristic of true leadership.
善良是一个真正领导力的特征。
C1 adjective /kənˈdjuː.sɪv/

conducive

有利的
Meaning
Making a certain situation or outcome likely or possible; contributing to or helping to bring about.
Example
A quiet environment is conducive to studying.
安静的环境有利于学习。
C2 noun /kəmˈpɛndiəm/

compendium

汇编
Meaning
A collection of concise but detailed information about a subject.
Example
The book is a compendium of ancient myths and legends.
这本书是关于古代神话和传说的汇编。
B1 noun /ˈkæp.ɪ.təl/

Capital

首都; 资本; 财富
Meaning
the most important city or town of a country or region; wealth in the form of money or assets
Example
Paris is the capital of France and also a major financial capital.
巴黎是法国的首都，也是一个重要的金融中心。
C2 adjective /kəˈnaɪ.vɪŋ/

conniving

阴险的
Meaning
secretly scheming or plotting to help in wrongdoing
Example
He is a conniving politician who manipulates people for power.
他是一个阴险的政治家，利用权力操纵人民。
A2 adjective /ˈkʌmɪŋ/

coming

即将来临
Meaning
approaching or happening soon
Example
We are preparing for the coming festival.
我们正在为即将来临的节日做准备。
C1 adjective /ˈkrɛdɪtəbl/

creditable

值得称赞
Meaning
Deserving praise or acknowledgment, though not necessarily outstanding.
Example
She made a creditable effort in completing the project on time.
她做出了值得称赞的努力，按时完成了项目。
B1 noun /ˈkʌntrisaɪd/

countryside

乡村
Meaning
land outside cities and towns; rural areas with farms, fields, and villages
Example
She enjoys the peace and beauty of the countryside.
她享受乡村的宁静和美丽。
A2 noun ˌkɒmpəˈtɪʃən

competition

竞争
Meaning
The activity or condition of competing; rivalry for supremacy.
Example
Competition grew between language groups.
竞争在语言群体之间加剧。
C1 adjective /ˈkɔːrəl/

choral

与合唱团相关
Meaning
Relating to, written for, or performed by a choir or chorus.
Example
The church hosted a choral performance on Sunday.
教堂在周日举办了合唱表演。
B2 noun /kraɪst/

christ

基督
Meaning
the title given to Jesus, considered the Messiah in Christianity
Example
Christ is central to Christian faith.
基督是基督教信仰的核心。
A2 adverb /ˈklɪrli/

clearly

清楚地
Meaning
In a way that is easy to perceive, understand, or see.
Example
She spoke clearly so that everyone could understand.
她清楚地说话，以便每个人都能理解。
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 noun /ˈkɒrənər/

coroner

法医
Meaning
an official who investigates sudden, violent, or suspicious deaths
Example
The coroner determined the cause of death was natural.
法医确定死亡原因是自然的。
C2 noun /kəˈmɛstɪbəl/

comestible

可食用的
Meaning
An item of food that can be eaten.
Example
The picnic basket was full of delicious comestibles.
野餐篮子里装满了美味的可食用物品。
B2 noun /ˈkæʃuː nʌts/

Cashew nuts

腰果
Meaning
kidney-shaped nuts from the cashew tree, commonly eaten as snacks or used in cooking
Example
Cashew nuts are often used in Indian sweets and curries.
腰果常用于印度的甜点和咖喱中。
C1 adverb /ˈkɔːrdiəli/

Cordially

热情地
Meaning
in a warm and friendly manner; sincerely
Example
You are cordially invited to our wedding ceremony.
你被热情邀请参加我们的婚礼仪式。
B1 verb /kənˈɡrætʃʊleɪt/

congratulate

祝贺
Meaning
to praise someone for an achievement or for a special occasion
Example
I want to congratulate you on your promotion.
我想祝贺你晋升。
B1 verb /kənˈsuːm/

consume

吃，喝，消费
Meaning
to eat or drink; to use up; to destroy completely
Example
We consume a lot of water during summer.
我们夏天消耗很多水。
B2 noun /ˈklʌstər/

cluster

串
Meaning
a group of similar things or people positioned close together
Example
The grapes grew in a tight cluster.
葡萄在一个紧密的串中生长。
B2 noun /kraɪˈtɪəriən/

criterion

标准
Meaning
A standard or rule used to make a judgment or decision.
Example
Honesty is an important criterion for this job.
诚实是这份工作的一个重要标准。
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。
B2 verb /kənˈfaɪd/

confide

Meaning
To tell someone about a secret or private matter while trusting them not to repeat it.
Example
He confided his worries to his best friend.
B2 noun, adjective /ˈkɒrəl/

coral

珊瑚
Meaning
a hard, rock-like marine organism formed by tiny sea animals; a pinkish-orange color resembling coral
Example
The coral in the reef provides shelter for many sea creatures.
珊瑚礁中的珊瑚为许多海洋生物提供庇护。
A2 noun /klʌb/

club

俱乐部
Meaning
an organization of people with a common interest; also a place for social gatherings or entertainment
Example
He joined the local tennis club to meet new people.
他加入了当地的网球俱乐部，以结识新朋友。
C2 verb /ˈtʃeɪ.sən/

chasten

惩罚 / 使屈服
Meaning
to correct or discipline; to humble or subdue
Example
The coach chastened the team after their poor performance.
教练在他们的糟糕表现后惩罚了球队。
C1 noun /ˈkɑːrkəs/

carcass

动物尸体
Meaning
the dead body of an animal, especially after being slaughtered
Example
Vultures fed on the carcass left in the field.
秃鹰在田野中啄食尸体。
B2 verb /ˈkɒm.plɪ.keɪt/

complicate

使复杂
Meaning
To make something more difficult or confusing.
Example
The new rules will only complicate the process.
新规则只会使这个过程更加复杂。
C2 verb /ˌkɒntrəˈvɜːrt/

controvert

反驳
Meaning
to dispute or argue against; to contradict
Example
The scientist controversed the previous research findings.
科学家反驳了之前的研究结果。
B2 adjective /ˈsɛntɪɡreɪd/

centigrade

摄氏度 (摄氏)
Meaning
Relating to the Celsius temperature scale, where water freezes at 0° and boils at 100°.
Example
The weather forecast predicted 30 degrees centigrade.
天气预报预测了30度摄氏度。
B2 noun /ˈkɑn.trəˌvɜr.si/

Controversy

争议; 分歧
Meaning
prolonged public disagreement or heated discussion; a dispute or argument involving opposing viewpoints
Example
The new policy sparked a major controversy among the citizens.
新政策在市民中引发了巨大的争议。
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 verb /kənˈsiːd/

concede

Meaning
to admit something is true or valid, often reluctantly
Example
She finally conceded that she was wrong.
C1 noun/adjective /kənˈfɛdərət/

confederate

同盟
Meaning
a person, group, or state joined in an alliance or union; relating to a confederacy
Example
The confederate soldiers fought bravely in the war.
同盟士兵在战争中英勇作战。
C1 noun/verb /ˈsaɪ.fər/

cipher

密码
Meaning
A secret or disguised way of writing; a code; to put a message into secret writing.
Example
Military messages are protected using a cipher.
军事消息通过密码保护。
C1 noun /ʃəˈmiːz/

Chemise

睡裙
Meaning
a woman's loose-fitting undergarment or dress hanging straight from the shoulders
Example
The vintage chemise was made of delicate lace and silk.
这款复古睡裙由精美的蕾丝和丝绸制成。
B2 verb /kəˈmɛnd/

commend

表扬
Meaning
to praise formally or officially
Example
The teacher commended the students for their hard work.
老师表扬了学生们的努力。
B2 verb /kəˈrɛspɒnd/

correspond

通信
Meaning
to communicate by exchanging letters or messages
Example
I correspond regularly with my old friends.
我与我的老朋友定期通信。
C1 verb /kənˈsaɪn/

consign

托付
Meaning
to deliver something to a person or place, often for selling or safekeeping
Example
He consigned the package to the shipping company.
他将包裹交给了运输公司。
C1 verb /kənˈsɛptʃuəlaɪz/

conceptualize

构思
Meaning
to form an idea or concept of something in your mind
Example
The artist conceptualized a new design for the exhibition.
艺术家为展览构思了一个新的设计。
C1 verb /tʃæsˈtaɪz/

chastise

Meaning
to criticize or punish severely
Example
The teacher chastised the student for being late.
C2 noun /ˈkloʊðiər/

clothier

服装商
Meaning
a person or company that makes, sells, or deals in clothes.
Example
The town’s clothier displayed fine suits in his shop window.
城里的服装商在他的店窗里展示了精美的西装。
C2 noun /ˌkælɪsˈθɛnɪks/

calisthenics

体重训练
Meaning
exercises that use body weight for strength and flexibility
Example
She practices calisthenics every morning in the park.
她每天早晨在公园里做自体重训练。
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。
B2 noun ˌkɒn.ekˈtɪv.ɪ.ti

connectivity

连接性
Meaning
The state of being connected or interconnected; the capacity for the interconnection of platforms, systems, and applications.
Example
Improved connectivity boosts economic development.
改善的连接性促进了经济发展。
C2 adjective /kəˈrɛlətɪv/

correlative

相关的
Meaning
having a mutual relationship; corresponding
Example
The increase in temperature is correlative with the melting of glaciers.
温度的升高与冰川的融化有关。
C1 verb /kənˈspaɪər/

conspire

密谋
Meaning
to secretly plan with others to do something harmful or illegal
Example
They conspired to overthrow the government.
他们密谋推翻政府。
C2 noun /ˈkætəˌklɪzəm/

cataclysm

灾难
Meaning
A sudden and violent event that causes great destruction or upheaval.
Example
The earthquake was a cataclysm that reshaped the city.
地震是一个重新塑造城市的灾难。
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/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。
C2 adjective /ˌkloʊs ˈhɔːld/

close-hauled

逆风航行
Meaning
of a sailing ship, sailing as nearly as possible towards the direction from which the wind is blowing.
Example
The yacht was close-hauled as it cut through the waves.
那艘游艇在波浪中紧贴风向行驶。
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。
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 noun /ˈkʌzn/

cousin

堂兄/堂弟/表兄/表弟
Meaning
A child of one's uncle or aunt.
Example
My cousin is coming to visit us this weekend.
我的堂兄这个周末要来拜访我们。
C1 noun /ˈtʃʌk.əl/

Chuckle

轻微的笑声
Meaning
a quiet or suppressed laugh; to laugh quietly or with amusement
Example
He gave a soft chuckle when he heard the funny joke.
他听到那个有趣的笑话时发出轻轻的笑声。
B2 adjective ˈkɒɡnɪtɪv

cognitive

认知的
Meaning
Related to mental processes of perception, memory, judgment, and reasoning.
Example
Cognitive functions improve with practice and learning.
认知功能通过练习和学习得到改善。
A2 adverb /kəˈrɛktli/

correctly

正确地
Meaning
in a way that is true, accurate, or without mistakes
Example
She answered all the questions correctly.
她正确地回答了所有问题。
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。
B2 noun /ˈkaʊnsəlɪŋ/

counseling

咨询
Meaning
professional guidance or therapy to help resolve personal or psychological problems
Example
She decided to go for counseling after feeling stressed for months.
在感到几个月的压力后，她决定去咨询。
B1 noun /ˈsɛrəˌmoʊni/

ceremony

Meaning
A formal event or occasion, often with rituals and traditions.
Example
The graduation ceremony was held in the university hall.
C2 verb /kənˈvɑːlv/

convolve

一起缠绕或扭曲;缠绕或交织
Meaning
to roll or twist together; to coil or entwine
Example
The vines convolve around the tree trunk.
藤蔓缠绕在树干周围。
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。
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。
A2 noun /ˈkɒf.i ˈmeɪ.kər/

Coffee maker

咖啡机
Meaning
an electric appliance used to brew coffee automatically
Example
I use my coffee maker every morning to brew fresh coffee.
我每天早上使用我的咖啡机来冲泡新鲜的咖啡。
C1 adjective /ˈkɒɡ.nɪ.zənt/

cognizant

意识到
Meaning
Having knowledge or being aware of something.
Example
He was cognizant of the risks before starting the project.
他在开始这个项目之前就意识到风险。
B2 verb kəˈlæbəreɪt

collaborate

合作
Meaning
To work jointly with others, especially in an intellectual endeavor; cooperate.
Example
Volunteers often collaborate with local organizations.
志愿者经常与当地组织合作。
B2 noun /ˈklaɪ.mət əˌdæp.teɪ.ʃən/

climate adaptation

气候适应
Meaning
The process of adjusting to current or expected climate change and its effects.
Example
Climate adaptation ensures resilience to change.
气候适应确保了对变化的适应能力。
B2 noun /ˈsɜːrkɪt/

circuit

电路 / 电气通路
Meaning
A roughly circular line, route, or movement that starts and ends at the same place; also an electrical pathway.
Example
The runners completed the circuit around the park.
跑步者完成了环绕公园的电路。
C1 noun /tʃɪt/

Chit

便条, 紙條
Meaning
a short note, typically a brief informal letter; a voucher for a sum owed
Example
She left a chit on the table asking him to call her back.
她在桌子上留了一张纸条，要求他回电。
C2 noun /ˈkrɪsəndəm/

christendom

基督教世界
Meaning
the worldwide body or community of Christians
Example
The news spread quickly across Christendom.
新闻迅速传播到整个基督教世界。
C1 noun /krɪpt/

crypt

墓室
Meaning
an underground chamber, especially one beneath a church, used as a burial place
Example
The tourists explored the ancient crypt beneath the cathedral.
游客们探索了大教堂下的古老地下室。
C1 adjective kənˈten.ʃəs

contentious

有争议
Meaning
Causing or likely to cause an argument; controversial.
Example
The contentious issue divided global leaders.
有争议的问题分裂了全球领导人。
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。
B1 verb /ˈkælkjəˌleɪt/

calculate

计算
Meaning
to determine by mathematical computation; to estimate
Example
I need to calculate the total cost.
我需要计算总成本。
B2 noun/adjective /ˈkæpɪtəlɪst/

capitalist

Meaning
a person who supports or believes in capitalism; a wealthy business owner
Example
The capitalist believes in the freedom of the market.
C1 noun /ˈkɒt.ən ˈfæb.rɪk/

Cotton Fabric

棉布
Meaning
textile made from cotton fibers, known for being soft, breathable, and comfortable
Example
Cotton fabric is perfect for summer clothing.
棉布是夏季衣物的完美选择。
C1 noun /ˈsɛntrɪˌfjuːdʒ/

centrifuge

离心机
Meaning
A machine that spins substances at high speed to separate different components.
Example
The lab technician used a centrifuge to separate the blood cells from the plasma.
实验室技术员使用离心机将血细胞从血浆中分离出来。
B2 noun /ˈkæt fɪʃ/

Cat fish

鲶鱼
Meaning
a freshwater fish with whisker-like barbels around the mouth, commonly found in ponds and rivers
Example
Catfish is often fried and served with rice in Bengali cuisine.
鲶鱼在孟加拉菜中常被油炸并配米饭。
A1 adjective /tʃiːp/

Cheap

便宜; 低价
Meaning
low in price; costing little money
Example
This restaurant serves cheap but delicious food.
这家餐厅提供便宜但美味的食物。
C1 adjective /kənˈkluː.sɪv/

Conclusive

决定性的; 终结的; 完全解决问题
Meaning
final; decisive; settling a matter completely
Example
The evidence was conclusive and left no room for doubt.
证据是决定性的，没有留下任何怀疑的空间。