celibate
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C1 adjective, noun /ˈsɛlɪbət/

celibate

Meaning
abstaining from marriage and sexual relations; a person who does so
Example
He chose to remain celibate for religious reasons.
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 ˈkætəlɪst

catalyst

催化剂
Meaning
A person or thing that precipitates an event or change.
Example
His speech acted as a catalyst for change in the community.
他的演讲成为了社区变化的催化剂。
C1 verb /ˈkælɪˌbreɪt/

calibrate

Meaning
To adjust or mark something so it can be used accurately; to standardize.
Example
The technician calibrated the machine before starting the experiment.
C1 adjective /koʊˈɜːrsɪv/

coercive

强制性
Meaning
Relating to or using force or threats to make someone do something.
Example
The government faced criticism for adopting coercive measures against protestors.
政府因采用对抗议者的强制性措施而遭到批评。
C1 verb /ˌkɒndɪˈsɛnd/

condescend

从高处以友善的态度
Meaning
to behave as if one is superior while being gracious to others
Example
He would not condescend to answer such a trivial question.
他不会屈尊回答如此琐碎的问题。
C1 verb /ˈkætəˌlaɪz/

catalyze

催化
Meaning
To cause or accelerate a reaction or change.
Example
The new law catalyzed reforms across the sector.
新法律催化了整个行业的改革。
C1 noun /ˈkoʊmə/

coma

昏迷
Meaning
A deep state of prolonged unconsciousness caused by illness or injury.
Example
The patient remained in a coma for several weeks.
病人昏迷了几周。
C1 verb /ˈkæp.saɪz/

capsize

翻覆
Meaning
to overturn in the water
Example
The small fishing boat capsized during the storm.
小渔船在风暴中翻覆。
C1 verb /kʌl/

cull

Meaning
to select or remove from a larger group, often to reduce numbers
Example
The farmers decided to cull the sick animals from the herd.
C1 adjective /ˈkɑːr.di.æk/

cardiac

心脏的
Meaning
Relating to the heart.
Example
The patient was admitted with a cardiac condition.
病人因心脏病情被收治。
C1 verb /kəmˈprɛs/

compress

压缩
Meaning
to press or squeeze something so that it becomes smaller
Example
The file was compressed to save storage space.
文件被压缩以节省存储空间。
C1 noun ˌkæl.ɪˈbreɪ.ʃən

calibration

校准
Meaning
The action or process of adjusting or determining the accuracy of measuring instruments.
Example
The accuracy of a scale depends on regular calibration.
秤的准确性取决于定期校准。
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。
C1 adjective /kənˈtraɪvd/

contrived

人为的或强迫的；不自然或自发的
Meaning
artificial or forced; not natural or spontaneous
Example
The ending of the movie felt contrived and unrealistic.
电影的结局感觉造作且不真实。
C1 noun /kɑːrˈtɒɡrəfər/

cartographer

制图师
Meaning
A person who makes maps.
Example
The cartographer carefully drew the map of the new territory.
制图师小心地绘制了新区域的地图。
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。
C1 noun /ˈkɒn.vɔɪ/

convoy

车队
Meaning
a group of vehicles or ships traveling together, often for protection
Example
The military convoy moved through the desert at dawn.
军队车队黎明时穿越沙漠。
C1 noun/verb /ˈkætəpʌlt/

catapult

弹射器
Meaning
A device for launching objects at high speed; to hurl or launch something suddenly.
Example
The invention catapulted him to international fame.
发明将他弹射到国际声誉。
C1 noun /krʌˈsteɪʃən/

crustacean

硬壳水生动物
Meaning
an aquatic animal with a hard shell, such as crabs, lobsters, and shrimps
Example
Crabs and lobsters are well-known crustaceans.
螃蟹和龙虾是著名的甲壳类动物。
C1 noun /krəˈvæs/

crevasse

深裂缝
Meaning
a deep crack in a glacier or the earth’s surface
Example
The climbers carefully crossed the icy crevasse.
登山者小心地越过了冰冷的裂缝。
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。
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。
C1 verb /ˌkaʊntərˈækt/

counteract

反作用
Meaning
to act against something in order to reduce its effect
Example
The medicine helps counteract the side effects of the treatment.
这药有助于抵消治疗的副作用。
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。
C1 adjective /kəˈmɛmərətɪv/

commemorative

纪念的
Meaning
Serving as a reminder or in honor of a person or event.
Example
They issued a commemorative coin for the independence anniversary.
他们发行了一枚纪念币，庆祝独立纪念日。
C1 noun /ˈkæn.ə.pi/

canopy

森林的上层，由树冠形成; 上方遮蔽
Meaning
The upper layer of a forest formed by the crowns of trees; overhead cover.
Example
The rainforest canopy provides shelter to many birds and insects.
雨林的天篷为许多鸟类和昆虫提供庇护。
C1 noun /ˌkɒŋɡrɪˈɡeɪʃən/

congregation

集会
Meaning
a group of people assembled for religious worship or a common purpose
Example
The congregation gathered to hear the sermon.
集会聚集在一起聆听讲道。
C1 adjective /klaɪˈmæktɪk/

climactic

高潮的
Meaning
Relating to the most exciting or important moment of something.
Example
The film ended with a climactic battle scene.
电影以一场高潮的战斗场景结束。
C1 verb /ˈsɪvɪlaɪz/

civilize

使文明
Meaning
to bring a society or group to a more developed, organized, or socially acceptable state; to educate and refine behavior
Example
Education can help civilize communities by promoting shared values and respect.
教育可以通过促进共同价值观和尊重来使社区更加文明。
C1 verb /kənˈvɜːrdʒ/

converge

汇合
Meaning
to come together from different directions; to meet at a point
Example
The roads converge at the city center.
这些路在市中心汇合。
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。
C1 noun kənˈsɔː.ti.əm

consortium

联合体
Meaning
An association of several companies or organizations formed to undertake an enterprise beyond the resources of any one member.
Example
The consortium worked collaboratively to build the cable.
该联盟协同合作建设了电缆。
C1 verb /kəˈleɪt/

collate

整理
Meaning
to collect, arrange, and combine in order
Example
The secretary collated the reports before the meeting.
秘书在会议之前整理了报告。
C1 noun kəmˈpleɪ.sən.si

complacency

自满
Meaning
Excessive self-satisfaction with one's achievements that can hinder progress.
Example
His complacency led to a decline in his performance.
他的自满导致了他的表现下降。
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。
C1 noun /ˌkɒk.əˈtuː/

Cockatoo

凤头鹦鹉
Meaning
a large parrot with a prominent crest that can be raised or lowered
Example
The white cockatoo raised its beautiful crest.
白色凤头鹦鹉举起了它美丽的冠羽。
C1 noun kənˈvɜː.dʒəns

convergence

汇聚
Meaning
The process of coming together from different directions to meet at a common point; unification or integration.
Example
The convergence of technologies is revolutionizing industries.
技术的汇聚正在革命化行业。
C1 noun /ˈklɛmənsi/

clemency

宽恕
Meaning
mercy, leniency, or forgiveness shown towards someone
Example
The judge showed clemency and reduced his sentence.
法官表现出宽恕，减少了他的判决。
C1 adjective /kəˈləʊ.kwi.əl/

colloquial

口语
Meaning
Used in ordinary conversation rather than formal speech or writing; informal language.
Example
His colloquial expressions made the speech relatable.
他的口语表达让演讲更加生动。
C1 noun/verb /kroʊˈʃeɪ/

crochet

Meaning
Needlework made by interlocking loops of thread with a hooked needle; the act of making such items.
Example
She learned how to crochet a scarf for winter.
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。
C1 verb /tʃɑːr/

char

烧焦
Meaning
To burn or scorch something so that it becomes blackened.
Example
The cook accidentally charred the steak.
厨师不小心烧焦了牛排。
C1 noun /ˈkælkjʊləs/

calculus

微积分
Meaning
A branch of mathematics concerned with rates of change and accumulation; also a hard mineral deposit in the body such as on teeth.
Example
Calculus is essential for advanced studies in physics and engineering.
微积分是物理学和工程学高级研究的基础。
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。
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。
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 adjective + noun kəˈmendəbəl ɪˈnɪʃətɪvz

commendable initiatives

值得赞扬的倡议
Meaning
Praiseworthy efforts or actions that deserve admiration and approval.
Example
The commendable initiatives aim to raise awareness.
这些值得赞扬的倡议旨在提高意识。
C1 noun /kənˈstɪtʃuənsi/

constituency

选区
Meaning
A geographical area whose residents elect a representative to a legislative body.
Example
She campaigned tirelessly across her constituency.
她在自己的选区内不知疲倦地竞选。
C1 noun /kəˈlɪɡrəfi/

calligraphy

美丽且装饰性的书写艺术
Meaning
The art of beautiful and decorative handwriting.
Example
She took a course to improve her calligraphy skills.
她参加了一个课程来提高她的书法技能。
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。
C1 verb /kəˈrəʊd/

corrode

腐蚀
Meaning
to gradually destroy or wear away metal or other materials through chemical action
Example
The iron pipes corroded over time due to exposure to water.
铁管因暴露在水中而随着时间的推移而腐蚀。
C1 noun /ˈʃæsi/

chassis

车辆底盘
Meaning
the base frame of a vehicle or other wheeled machine
Example
The mechanic examined the car's chassis for damage.
机械师检查了汽车的底盘以查找损坏。
C1 noun /ˈkɒndɪmənt/

condiment

调味品/酱料
Meaning
a substance such as salt, mustard, or ketchup that is used to add flavor to food
Example
Ketchup is a popular condiment in many countries.
番茄酱是许多国家受欢迎的调味品。
C1 noun /kəˈres/

Caress

抚摸
Meaning
a gentle or loving touch
Example
The mother's gentle caress calmed the crying baby.
母亲温柔的抚摸使哭泣的婴儿平静下来。
C1 noun /kəˈmoʊʃən/

commotion

骚动
Meaning
A state of noisy confusion or disturbance.
Example
The sudden commotion in the market drew everyone's attention.
市场上的突然骚动吸引了所有人的注意。
C1 noun /ˈkɒb.lər/

Cobbler

鞋匠
Meaning
a person who repairs shoes and other leather goods
Example
The cobbler fixed my broken shoes perfectly.
鞋匠完美地修好了我的破鞋。
C1 noun/verb kənˈdʒɛk.tʃər

conjecture

推测
Meaning
An opinion or conclusion formed on the basis of incomplete information; to form an opinion or supposition about something.
Example
The scientist's conjecture was later proven true.
科学家的推测后来被证明是正确的。
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。
C1 noun /kəmˈplɪsəti/

complicity

共谋
Meaning
the state of being involved with others in an illegal activity or wrongdoing
Example
The court revealed his complicity in the fraud scheme.
法庭揭示了他在欺诈计划中的共谋。
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。
C1 noun /ˈkɑːrtrɪdʒ/

cartridge

墨盒
Meaning
A container holding a substance or device, such as ink for printers or bullets for firearms.
Example
The printer stopped working because the ink cartridge was empty.
打印机停止工作，因为墨盒已空。
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。
C1 noun /ˈkɔːrdən/

cordon

警戒线
Meaning
a line or circle of police, soldiers, or guards preventing access
Example
The police set up a cordon around the crime scene.
警方在犯罪现场周围设立了封锁线。
C1 noun /ˈkʌvənənt/

covenant

契约
Meaning
a formal agreement or promise, often legally binding
Example
The landlord and tenant signed a covenant to maintain the property.
房东和租户签署了一份契约，以保持财产。
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。
C1 noun /krɪˈden.ʃəl/

credential

资历, 证明文件
Meaning
a qualification, achievement, or aspect of a person's background used to indicate suitability for something
Example
She presented her credentials before starting the new job.
她在开始新工作之前展示了她的资历。
C1 adjective/verb /ˈkɒn.sə.mət/

consummate

以极大的技巧完成或完善某物
Meaning
To complete or perfect something with great skill
Example
He is a consummate artist with years of experience.
他是一个技艺精湛的艺术家，拥有多年的经验。
C1 noun /krʌtʃ/

crutch

拐杖, 支撑
Meaning
a support used by someone injured to walk; also something relied upon for support or help
Example
He had to use crutches after breaking his leg.
他在摔断腿后不得不用拐杖。
C1 verb /kənˈstrɪkt/

constrict

收缩
Meaning
to make narrower or tighter; to shrink or compress
Example
The snake constricted its prey before swallowing.
蛇在吞噬之前把猎物收缩了。
C1 adjective /ˌkævəˈlɪər/

cavalier

漫不经心
Meaning
showing a lack of proper concern; dismissive or offhand
Example
He had a cavalier attitude toward safety regulations.
他对安全规定有一种漫不经心的态度。
C1 noun /ˈkɒz.moʊs/

Cosmos

宇宙花
Meaning
a colorful annual flower with daisy-like blooms and feathery foliage
Example
The cosmos flowers swayed gently in the summer breeze across the meadow.
宇宙花在夏季的微风中轻轻摇摆，穿过草地。
C1 adjective /klænˈdɛstaɪn/

clandestine

Meaning
kept secret or done secretly, especially for illicit purposes
Example
They held a clandestine meeting late at night.
C1 adverb kəmˈpæktli

compactly

紧凑地
Meaning
In a closely packed or dense manner.
Example
Protons and neutrons are compactly arranged.
质子和中子紧密地排列。
C1 noun /ˈkɑːrtɪlɪdʒ/

cartilage

软骨
Meaning
A firm, flexible connective tissue found in various parts of the body such as joints, ear, and nose.
Example
The doctor explained that the injury damaged the cartilage in his knee.
医生解释说，伤害损坏了他膝盖的软骨。
C1 adjective /kræs/

crass

粗鲁的，缺乏敏感性或精致
Meaning
lacking sensitivity, refinement, or intelligence
Example
His crass remarks offended everyone at the meeting.
他的粗鲁言论在会议上冒犯了每个人。
C1 verb /klæsp/

clasp

抓住 / 扣子
Meaning
to grasp or hold tightly; also a device for fastening
Example
She clasped her hands together in prayer.
她在祈祷时将手紧紧地握在一起。
C1 verb /kraʊtʃ/

crouch

Meaning
to bend your knees and lower your body close to the ground
Example
The cat crouched before leaping at its prey.
C1 noun /ˈkætərækt/

cataract

白内障 / 瀑布
Meaning
A medical condition causing clouding of the eye's lens; also a large waterfall.
Example
The old man suffered from cataracts in both eyes.
那位老年人双眼都患有白内障。
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。
C1 noun kəˈmɑːnd ɪˈkɒn.ə.mi

command economy

计划经济
Meaning
An economic system where economic activities are controlled by the government.
Example
In a command economy, the government controls production and prices.
在计划经济中，政府控制生产和价格。
C1 adjective /kəˈlæpsəbl̩/

collapsible

可折叠的
Meaning
able to be folded down or reduced in size
Example
She bought a collapsible chair for camping.
她为露营买了一个可折叠的椅子。
C1 adjective /ˌkɒzməˈpɒlɪtən/

cosmopolitan

全球化
Meaning
familiar with and at ease in many different countries and cultures
Example
He has a cosmopolitan outlook due to his extensive travels.
由于他的广泛旅行，他拥有全球化的视野。
C1 adjective /ˈtʃɛkərd/

chequered

棋盘格的
Meaning
Having a pattern of squares, or marked by varied and contrasting experiences or periods.
Example
He had a chequered career with both great successes and failures.
他有一段棋盘格的职业生涯，既有巨大的成功，也有失败。
C1 noun, adjective /ˈsɛntənəri/ or /sɛnˈtɛnəri/

centenary

百年纪念
Meaning
The hundredth anniversary of a significant event; relating to a period of 100 years.
Example
The school celebrated its centenary with a grand event.
学校以一场盛大的活动庆祝了它的百年纪念。
C1 verb /ˈsenʃər/

censure

谴责, 批评
Meaning
to criticize severely; to express strong disapproval
Example
The committee censured the politician for his misconduct.
委员会因他的不当行为谴责了政治家。
C1 noun /kəˈmɪtl̩/

committal

监禁 / 扣押
Meaning
The action of sending a person to prison or a mental hospital; also the act of committing something to a particular place.
Example
The judge ordered the committal of the accused to custody.
法官命令将被告送入拘留。
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。
C1 noun /ˈkroʊ.bɑːr/

Crowbar

撬棍
Meaning
a heavy iron bar with a curved end used as a lever for prying things apart
Example
He used a crowbar to remove the old nails.
他用撬棍把旧钉子取了出来。
C1 verb /kənˈtɛkstʃuəlaɪz/

contextualize

使……有背景
Meaning
to place something in a context or interpret it in relation to its surroundings
Example
The teacher contextualized the historical event to make it more relevant for students.
老师将历史事件置于背景中，以使其对学生更加相关。
C1 adjective /ˈkæni/

canny

精明
Meaning
Having good judgment, especially in business or practical matters; shrewd.
Example
She made a canny investment in real estate.
她在房地产方面做出了精明的投资。
C1 adjective /ˌser.ɪˈmoʊ.ni.əl/

Ceremonial

仪式的
Meaning
relating to or used in ceremonies; formal and ritualistic
Example
The ceremonial dress was worn during the royal wedding.
在皇家婚礼上穿的就是仪式性的服装。
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。
C1 adjective ˈkʌm.bə.səm

cumbersome

笨重的, 难以搬运的
Meaning
Heavy, unwieldy, difficult to handle or carry.
Example
The cumbersome luggage slowed him down.
笨重的行李让他变慢了。
C1 noun /klæn/

clan

氏族
Meaning
a large family group or a close-knit community with shared interests or ancestry
Example
The entire clan gathered to celebrate the festival.
整个氏族聚集在一起庆祝节日。
C1 noun kənˈɡlɒm.ər.ət

conglomerate

企业集团
Meaning
A large corporation formed by the merging of separate and diverse firms.
Example
The company grew into a multinational conglomerate.
这家公司发展成为一家跨国企业集团。
C1 noun /kənˈtɛndər/

contender

竞争者, 争夺者
Meaning
a person or team competing for a title or prize
Example
She is a strong contender for the mayoral position.
她是市长职位的强有力竞争者。
C1 noun /kjʊˈreɪtər/

curator

策展人
Meaning
a person who is responsible for the care and management of a museum, gallery, or collection
Example
The curator organized a new exhibition of ancient artifacts.
策展人组织了一个新的古代文物展览。
C1 noun /ˈkærɪkətjʊə/

caricature

讽刺画
Meaning
A picture or description that exaggerates certain features for comic or satirical effect.
Example
The magazine published a caricature of the politician.
杂志发布了政治家的讽刺画。
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。
C1 noun /ʃæˈtoʊ/

chateau

法国庄园
Meaning
a large French country house or castle
Example
They stayed in a beautiful chateau in France.
他们住在法国的一座美丽的城堡里。
C1 adjective /kənˈvɜːrdʒənt/

convergent

汇聚的
Meaning
tending to move toward a common point or result
Example
The two rivers have a convergent path before entering the lake.
这两条河流在进入湖泊之前有一条汇聚路径。
C1 noun /ˈkʌntrɪmən/

countryman

同胞
Meaning
a person from one's own country or rural area
Example
He was proud to meet a fellow countryman at the international conference.
他在国际会议上遇到一个同胞时感到自豪。
C1 adjective /ˌkɒndɪˈsɛndɪŋ/

condescending

居高临下
Meaning
having or showing an attitude of patronizing superiority
Example
Her condescending tone upset her colleagues.
她居高临下的语气让她的同事感到不满。
C1 noun kɒɡˈnɪʃ.ən

cognition

认知
Meaning
The mental action or process of acquiring knowledge and understanding through thought, experience, and the senses.
Example
Cognition plays a key role in learning.
认知在学习中起着关键作用。
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。
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 /ˌkɒn.stəˈleɪ.ʃən/

constellation

星座
Meaning
a group of stars forming a recognizable pattern in the night sky
Example
Orion is one of the most famous constellations.
猎户座是最著名的星座之一。
C1 noun /ˌkʌl də ˈsæk/

cul de sac

死胡同
Meaning
A street or passage closed at one end; a dead end.
Example
They bought a house at the end of a quiet cul de sac.
他们在一个安静的死胡同的尽头买了一栋房子。
C1 noun /kənˈsep.ʃən/

Conception

构思; 想法; 受精
Meaning
the forming of an idea or plan; the fertilization of an ovum by a sperm; the action of conceiving
Example
The conception of this innovative project took several months of brainstorming.
这个创新项目的构思花费了几个月的头脑风暴。
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。
C1 adjective ˈkrɪp.tɪk

cryptic

神秘的, 隐晦的, 模糊的
Meaning
Having a meaning that is mysterious or obscure; difficult to understand.
Example
The message was cryptic and hard to decipher.
消息是神秘的，很难解读。
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 /ˈʃɪvəlri/

chivalry

骑士精神
Meaning
The medieval knightly system with its moral, social, and religious code; courteous behavior, especially toward women.
Example
The knight lived by the code of chivalry.
骑士遵循骑士精神的规范。
C1 noun /ˈkɔːl.drən/

Cauldron

大锅
Meaning
a large metal pot with a lid and handle, used for cooking over a fire
Example
The witch stirred her potion in a large cauldron.
巫婆在一个大锅里搅拌她的药水。
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。
C1 noun sɪˈmɛntɪd ɡreɪv

cemented grave

水泥墓
Meaning
A grave that is constructed with cement for permanence.
Example
The cemented grave of the martyrs was seen near the river.
烈士的水泥墓被看见在河边。
C1 adjective /ˈkɒn.keɪv/

concave

凹形
Meaning
curved inward like the inside of a bowl
Example
The mirror had a concave surface that magnified her reflection.
镜子有一个凹形表面，放大了她的倒影。
C1 adjective /kənˈtɪɡ.ju.əs/

contiguous

相邻
Meaning
sharing a common border; touching
Example
The two continguous houses shared a wall.
这两座相邻的房子共享了一面墙。
C1 noun /kənˈfɔːrmɪst/

conformist

盲从者
Meaning
A person who uncritically conforms to established practices or standards.
Example
She was labeled a conformist for always following the crowd.
她因为总是跟随人群而被贴上了盲从者的标签。
C1 noun ˌsɛn.trə.laɪˈzeɪ.ʃən

centralization

集中化
Meaning
The concentration of control and decision-making power in a central authority.
Example
Excessive centralization can slow down decision-making.
过度的集中化可能会减慢决策的速度。