confirmation
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B1 noun /kənˌfɜːˈmeɪʃən/

confirmation

确认
Meaning
the action of confirming something or the state of being confirmed
Example
She received a confirmation email for her appointment.
她收到了她预约的确认电子邮件。
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。
B2 noun ˈsɜːrkjələr ɪˈkɒnəmi

circular economy

循环经济
Meaning
An economic system aimed at eliminating waste and the continual use of resources through reuse, sharing, repair, refurbishment, remanufacturing and recycling.
Example
Adopting a circular economy can reduce waste.
采用循环经济可以减少废物。
B2 verb /kəmˈpɛl/

compel

强迫
Meaning
To force or drive someone to do something.
Example
The law compels citizens to pay taxes.
法律强迫公民缴纳税款。
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 noun /ˈkeɪsiːn/

Casein

酪蛋白
Meaning
the main protein found in milk and cheese, used in food production and supplements
Example
Casein protein powder is popular among athletes for muscle recovery.
酪蛋白粉在运动员中因其对肌肉恢复的帮助而受到欢迎。
A2 noun /kɔːrn/

Corn

玉米
Meaning
a tall cereal plant that produces kernels on large ears; maize
Example
We grilled corn on the cob for dinner.
我们在晚餐时烤了玉米棒。
C1 verb /kəˈmɛmɔˌreɪt/

commemorate

纪念
Meaning
To honor and remember someone or something through a ceremony or action.
Example
The statue was built to commemorate the fallen heroes.
这座雕像是为了纪念牺牲的英雄而建造的。
B2 noun /ˈklɒzɪt/

closet

衣柜
Meaning
a small room or enclosed space used for storing clothes or other things
Example
She keeps her winter coats in the closet near the door.
她把冬季外套放在门旁的衣柜里。
C2 adjective /ˈkrɛdʒʊləs/

credulous

轻信的
Meaning
Having or showing too great a readiness to believe things.
Example
The credulous child believed every story she heard.
那个轻信的孩子相信了她听到的每一个故事。
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 verb /ˈkɒŋɡrɪɡeɪt/

congregate

聚集, 集合
Meaning
to gather together in a group; to assemble
Example
People congregate in the town square every evening.
人们每天晚上都会在市中心的广场上聚集。
C2 noun /kəˈdævər/

cadaver

尸体
Meaning
A dead human body, especially one used for medical study.
Example
Medical students dissected the cadaver to learn about human anatomy.
医学生解剖了尸体以了解人体解剖学。
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。
C1 adverb /ˈkrɒswaɪz/

Crosswise

交叉方向
Meaning
in the form of a cross; diagonally across
Example
Place the logs crosswise to build a stable fire.
将木柴交叉放置以建立一个稳定的火堆。
B1 noun /ˌsɪvɪlaɪˈzeɪʃən/

civilization

文明
Meaning
the stage of human social and cultural development and organization considered most advanced
Example
Ancient Egypt is known for its remarkable civilization.
古埃及因其卓越的文明而闻名。
B2 noun /ˈkɑː.bən ˈfʊt.prɪnt/

carbon footprint

碳足迹
Meaning
The amount of carbon dioxide and other carbon compounds emitted due to the consumption of fossil fuels by a particular person, group, etc.
Example
Reducing carbon footprint is essential for combating climate change.
减少碳足迹对抗气候变化至关重要。
B1 noun /tʃiːf/

chief

首领
Meaning
a leader or person in charge of a group or organization
Example
The chief of the village made an important decision.
村庄的首领做出了一个重要的决定。
B1 verb /kənˈtrɪbjuːt/

contribute

贡献
Meaning
to give something, especially money, time, or effort, to help achieve or provide something
Example
Everyone contributed money to buy a farewell gift for the teacher.
大家为买礼物给老师贡献了金钱。
C1 adjective /kəmˈpʌlsɪv/

compulsive

强迫的
Meaning
Resulting from or acting on an irresistible urge, especially one that is against one's conscious wishes.
Example
He is a compulsive gambler who cannot stop placing bets.
他是一个强迫症赌博者，无法停止下赌注。
C2 noun /krɪpˈtɒɡ.rə.fi/

cryptography

通过加密或编码技术保护信息的实践
Meaning
The practice of securing information through encryption or coding techniques
Example
Modern cryptography ensures secure online transactions.
现代加密学确保了安全的在线交易。
C2 noun ˌsɜːkəmˈspekʃən

circumspection

谨慎, 避免风险
Meaning
The quality of being wary and unwilling to take risks; prudence.
Example
His circumspection ensured no mistakes were made.
他的谨慎确保没有犯错误。
B1 noun /ˈtʃɛərˌwʊmən/

chairwoman

女主席
Meaning
a woman who presides over a meeting, committee, or organization; a female leader of a board or council
Example
She was elected chairwoman of the company after years of experience.
在多年的经验之后，她被选为公司的女主席。
B1 noun /ˈtʃɪl.i ˈpaʊ.dər/

Chilli Powder

辣椒粉
Meaning
a spice made from ground dried chili peppers, used to add heat and flavor to food
Example
Add two teaspoons of chilli powder to make the dish spicier.
加入两茶匙辣椒粉使菜肴更辛辣。
A2 noun ˈtʃælɪndʒ

challenge

挑战
Meaning
A call to take part in a contest or competition, especially a demanding or stimulating one; a task or situation that tests someone's abilities.
Example
Plastic pollution poses a significant challenge to global health.
塑料污染对全球健康构成了重大挑战。
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。
B2 noun /ˈkæʃ.uː nʌt/

Cashew Nut

腰果
Meaning
a kidney-shaped nut with a creamy texture and mild flavor
Example
Cashew nuts are often used in cooking and as a healthy snack.
腰果常用于烹饪和作为健康的零食。
B2 noun /ˈkɒn.ʃəs.nəs/

consciousness

意识
Meaning
The state of being aware of and able to think about one's existence, sensations, thoughts, and surroundings.
Example
Meditation helps improve consciousness and clarity of thought.
冥想有助于提高意识和思维的清晰度。
C1 verb /kɜːrˈteɪl/

curtail

减少
Meaning
to reduce or limit something, especially something considered undesirable
Example
The company had to curtail its spending due to budget cuts.
由于预算削减，公司不得不缩减开支。
B2 adjective /ˈtʃaɪld.laɪk/

Childlike

像孩子一样; 天真和信任; 纯净和简单
Meaning
innocent and trusting like a child; having the good qualities of a child; pure and simple
Example
She maintained a childlike wonder about the world around her.
她对周围的世界保持着孩子般的惊奇。
A2 noun/verb /kɔːz/

cause

原因 / 造成
Meaning
a person or thing that gives rise to an action, phenomenon, or condition; to make something happen
Example
The heavy rain caused flooding in the city.
大雨造成了城市的洪水。
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。
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。
C2 verb /kɔːk/

caulk

密封
Meaning
to seal a crack or gap with a waterproof filler
Example
He caulked the window frames to stop the draft.
他用密封胶封住了窗框，以阻止空气流通。
B2 adverb /ˈkæʒ.u.ə.li/

Casually

随便地; 放松且非正式的方式
Meaning
in a relaxed and informal way; without much thought or preparation
Example
He casually mentioned that he was leaving.
他随便提到他要走了。
B2 adverb /kənˈtɪnjuəli/

Continually

持续地; 一再
Meaning
without stopping; repeatedly
Example
She continually checked her phone for messages.
她不断检查她的手机是否有新消息。
C2 verb /kɒnˈkætəneɪt/

concatenate

连接
Meaning
To link things together in a series or chain.
Example
The program concatenates two strings into one.
程序将两个字符串连接为一个。
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。
C1 noun /koʊlt/

Colt

小马驹
Meaning
a young male horse, especially one under four years old
Example
The farmer trained the young colt to accept a saddle.
农民训练年轻的小马驹来接受马鞍。
C1 noun /ˈsɛtərə/

cetera

等等
Meaning
Latin for 'the rest' or 'others'; commonly used in the phrase 'et cetera' meaning 'and so on'.
Example
We need to buy pens, paper, notebooks, et cetera.
我们需要购买钢笔、纸张、笔记本等等。
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。
A1 noun /kɑːrd/

card

Meaning
A small, flat piece of stiff paper or thin cardboard used for various purposes, such as identification, greetings, or playing games.
Example
She handed me her business card after the meeting.
C2 verb /ˈsɜːrkəmskraɪb/

circumscribe

限制
Meaning
to limit or restrict something within boundaries
Example
The rules circumscribe the powers of the committee.
规则限定了委员会的权力。
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。
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。
A2 noun, verb /tʃɪp/

chip

Meaning
A small piece broken off from something; or to cut or break a small piece from something.
Example
He accidentally chipped the edge of the table.
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。
B1 noun /tʃɑːrt/

chart

图表
Meaning
a sheet of information in the form of a table, graph, or diagram
Example
The teacher used a chart to explain the statistics.
老师用图表来解释统计数据。
B2 adjective /ˈklʌm.zi/

clumsy

笨拙的
Meaning
awkward in movement or lacking skill
Example
He is so clumsy that he drops things all the time.
他这么笨，总是把东西掉下来。
B1 noun /ˈkɒliːɡ/

colleague

同事
Meaning
a person with whom one works, especially in a profession or business
Example
She invited her colleagues to the office party.
她邀请了她的同事参加办公室聚会。
A2 noun /ˈkrɒk.ə.daɪl/

Crocodile

鳄鱼
Meaning
a large reptile with a long mouth and sharp teeth that lives in rivers and lakes in hot countries
Example
The crocodile slowly moved through the murky water.
鳄鱼缓慢地穿过浑浊的水域。
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 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 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。
B1 verb /kruːz/

cruise

幸福
Meaning
to travel smoothly at a moderate speed, especially for pleasure
Example
They decided to cruise along the coast during their vacation.
她无法掩饰当她收到奖项时的幸福。
B1 adjective /kəmˈpetətɪv/

competitive

竞争的
Meaning
relating to or characterized by competition; having a strong desire to win or be more successful
Example
She has a competitive spirit that drives her to excel.
她有一种竞争精神，推动她追求卓越。
C2 verb /kəˈmɪŋɡəl/

commingle

混合
Meaning
To mix or blend different things together.
Example
The charity does not commingle donations with operational funds.
慈善机构不会将捐款与运营资金混合。
B2 noun /kɜːrv/

Curve

曲线; 转弯
Meaning
a line or outline that gradually deviates from being straight; a bend or turn in a road or path
Example
The driver slowed down as he approached the sharp curve in the mountain road.
当司机接近山路中的急转弯时，他减慢了速度。
B2 noun /kleɪ/

clay

黏土
Meaning
a natural material made of fine earth that becomes hard when baked, used for making pottery
Example
The artist molded the wet clay into a beautiful vase.
艺术家把湿黏土塑造成一个美丽的花瓶。
C1 noun ˌkʌl.mɪˈneɪ.ʃən

culmination

高潮. 某事物的最高点，特别是经历了长时间后。
Meaning
The highest or climactic point of something, especially as attained after a long time.
Example
The project reached its culmination after years of effort.
项目在多年努力后达到了高潮。
B1 noun ˈkɒn.fər.əns

conference

会议
Meaning
A formal meeting of people with a shared interest, typically one that takes place over several days.
Example
The climate conference emphasized renewable energy.
气候会议强调了可再生能源的重要性。
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。
B2 adjective /kəˈrɛspɒndɪŋ/

corresponding

相关的
Meaning
matching or related to something
Example
The corresponding page in the book explains the process in detail.
书中的相关页面详细解释了该过程。
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。
C1 noun /klaʊt/

clout

影响力
Meaning
influence or power, especially in politics or business
Example
The businessman has a lot of political clout.
这位商人有很大的政治影响力。
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。
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 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。
B2 adjective /ˈsɪvɪk/

civic

市民
Meaning
relating to a city, town, or the duties of its citizens
Example
The mayor encouraged people to take part in civic activities.
市长鼓励人们参与市民活动。
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 verb /krɪndʒ/

cringe

感到尴尬
Meaning
To shrink back in fear, embarrassment, or discomfort.
Example
She cringed when she remembered her mistake.
她想起自己的错误时，感到非常尴尬。
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。
C2 noun /ˈkreɪniəm/

cranium

颅骨
Meaning
the skull, especially the part enclosing the brain
Example
The archaeologists carefully examined the ancient cranium.
考古学家仔细检查了古老的颅骨。
B2 noun /kəʊˌɔːdɪˈneɪʃən/

coordination

协调
Meaning
the process of organizing different elements to work together effectively
Example
The coordination between the teams was flawless.
团队之间的协调无可挑剔。
B1 noun ˈkæn.dɪ.deɪts

candidates

候选人
Meaning
A person who applies for a job or is nominated for election; someone being considered for a position.
Example
Candidates undergo a rigorous selection process.
候选人经历了一个严格的选拔过程。
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。
A1 adjective /kuːl/

cool

冷静, 凉爽, 印象深刻
Meaning
moderately cold; calm and composed; fashionable or impressive
Example
She kept a cool head during the crisis.
她在危机中保持冷静。
C2 noun /kroʊn/

crone

老妇人
Meaning
An old woman, often one who is thin and ugly, sometimes associated with witch-like qualities.
Example
The children were scared by the story of the wicked crone in the forest.
孩子们被森林中邪恶老妇人的故事吓到了。
B2 preposition /kənˈsɜːnɪŋ/

concerning

关于
Meaning
about or relating to something; causing worry or anxiety
Example
There are some reports concerning the new project.
关于新项目有一些报告。
A2 noun /ˈkæptɪn/

Captain

舰长
Meaning
a military officer of middle rank; the person in command of a ship or aircraft
Example
The captain ordered his troops to advance forward.
舰长命令他的部队向前进发。
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。
B1 noun /ˌkɒmpəˈzɪʃən/

composition

作文
Meaning
the act of creating a piece of writing, music, or art; the way parts are arranged
Example
Her composition won first prize in the contest.
她的作文在比赛中获得了第一名。
C1 noun /kəˈpɪl.ər.iz/

capillaries

毛细血管
Meaning
Any of the fine branching blood vessels that form a network between the arterioles and venules.
Example
Broken capillaries cause dark circles.
破裂的毛细血管导致黑眼圈。
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。
B2 noun /ˈkreɪ.dəl/

Cradle

摇篮
Meaning
a small bed for a baby, especially one that rocks from side to side
Example
The baby sleeps peacefully in the cradle.
婴儿在摇篮里安静地睡觉。
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。
B2 adjective /ˈkɔːstli/

costly

昂贵
Meaning
expensive or causing a lot of money, time, or effort
Example
Their mistake proved to be very costly for the company.
他们的错误证明对公司来说是非常昂贵的。
C1 noun /kənˈfɔːrməns/

conformance

一致性
Meaning
The act of conforming to a rule, standard, or law.
Example
The product was tested for conformance with safety standards.
该产品已按照安全标准进行了符合性测试。
C2 noun /ˈkriːdoʊ/

credo

信条
Meaning
A statement of the beliefs or aims that guide someone's actions.
Example
Honesty has always been the central credo of his life.
诚实一直是他生活中的核心信条。
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。
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。
B2 adjective /ˌkɒst.ɪˈfɪʃ.ənt/

cost-efficient

节约成本
Meaning
Achieving maximum productivity with minimum wasted effort or expense.
Example
Cost-efficient solutions benefit industries.
节约成本的解决方案有利于各行各业。
B2 noun /kæf/

Calf

小牛
Meaning
a young cow or bull; young of various large mammals
Example
The calf stayed close to its mother.
小牛靠近它的母亲。
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。
B1 noun /ˌkrɪstiˈænɪti/

christianity

基督教
Meaning
the religion based on the teachings of Jesus Christ
Example
Christianity has millions of followers around the world.
基督教在全世界有数百万信徒。
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。
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。
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。
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。
C2 verb /ˌkaʊntərˈmænd/

countermand

撤销命令
Meaning
to revoke or cancel an order or command
Example
The general countermanded the previous orders immediately.
将军立即取消了先前的命令。
C1 noun /ˈkɒləmnɪst/

columnist

专栏作家
Meaning
a journalist who regularly writes articles or opinions for a newspaper or magazine
Example
The columnist wrote an article about climate change.
专栏作家写了一篇关于气候变化的文章。
B1 noun /ˈsɪtɪzənʃɪp/

citizenship

国籍
Meaning
the status of being a recognized member of a state or country, with rights and duties
Example
He applied for American citizenship after living there for ten years.
他在美国生活了十年后申请了美国国籍。
A2 noun /ˈkæs.əl/

Castle

城堡; 宫殿;
Meaning
a large fortified building or set of buildings; a fortress
Example
The medieval castle stood majestically on top of the hill.
中世纪的城堡庄严地矗立在山顶。
C1 adjective /koʊˈɪnsɪdənt/

coincident

同时
Meaning
Occurring at the same time; occupying the same position in space or time.
Example
The festival was coincident with the national holiday.
节日与国庆假日是同时发生的。
B2 verb /kənˈfes/

confess

承认
Meaning
to admit guilt or wrongdoing; to acknowledge
Example
He confessed his mistake to his teacher.
他向老师承认了自己的错误。
A1 verb, adjective /kloʊz/ (verb), /kloʊs/ (adjective)

close

关闭，接近
Meaning
To shut something (verb); near in space or relationship (adjective).
Example
Please close the door when you leave.
请在您离开时关门。
B2 noun /ˈkæʒ.u.əl.ti/

Casualty

伤亡; 受害者; 损失
Meaning
a person killed or injured in a war or accident; a victim of circumstances
Example
The hospital treated many casualties from the car accident.
医院治疗了许多来自车祸的伤者。
C2 adjective /ˈkrɛstˌfɔːlən/

crestfallen

沮丧
Meaning
sad and disappointed
Example
He looked crestfallen after hearing the bad news.
听到坏消息后，他看起来沮丧。
C2 adjective /kəˈdævərəs/

cadaverous

尸体般的
Meaning
Resembling a corpse; very pale, thin, or bony.
Example
His cadaverous appearance shocked everyone at the party.
他那尸体般的外貌让聚会中的每个人都感到震惊。
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。
B1 noun /kəmˈpleɪnt/

complaint

投诉
Meaning
a statement that something is wrong or not satisfactory
Example
The manager received a complaint from a customer about poor service.
经理收到了一名客户关于糟糕服务的投诉。
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。
B2 noun ˈkrɪp.toʊˌkɝː.ən.si

cryptocurrency

加密货币
Meaning
Decentralized digital currency operated using blockchain technology.
Example
Bitcoin is the most popular cryptocurrency in the market.
比特币是市场上最受欢迎的加密货币。
C2 adjective /ˌkrɪp.təˈɡræf.ɪk/

cryptographic

加密的
Meaning
Relating to cryptography; involving or using secret codes or ciphers for security.
Example
Banks use cryptographic technology to protect transactions.
银行使用加密技术来保护交易。
C2 adjective /ˌkæləˈrɪfɪk/

calorific

高热量的
Meaning
Relating to the amount of energy contained in food or fuel.
Example
Chocolate is highly calorific, so it should be eaten in moderation.
巧克力热量很高，所以应该适量食用。
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。
C2 noun /tʃæf/

Chaff

糠; 无价值的东西; 轻松的玩笑
Meaning
the husks of corn or other seed separated by winnowing; worthless things; light-hearted joking
Example
The farmer separated the wheat from the chaff using traditional methods.
农民使用传统方法将小麦从糠中分离出来。
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。
C2 noun /ˈkæt.kɪn/

Catkin

猫耳花
Meaning
a drooping, often tasseled cluster of small flowers found on willow and birch trees
Example
The willow tree's catkins swayed gently in the spring breeze.
柳树的猫耳花在春风中轻轻摇晃。
A2 noun /ˈkʌp.bɔːrd/

Cupboard

橱柜
Meaning
a piece of furniture with doors and shelves for storing dishes, food, or clothes
Example
She stored all the plates and bowls in the kitchen cupboard.
她把所有的盘子和碗放进了厨房的橱柜里。