concussion
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B2 noun /kənˈkʌʃən/

concussion

脑震荡
Meaning
A temporary unconsciousness or shock caused by a blow to the head.
Example
He suffered a concussion after falling from the bike.
他在从自行车上摔下来后，遭受了脑震荡。
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 noun /ˈsɪn.ɪˌsɪz.əm/

cynicism

愤世嫉俗
Meaning
An inclination to believe that people are motivated purely by self-interest; skepticism.
Example
His cynicism made it hard for him to trust anyone.
他的愤世嫉俗让他很难相信任何人。
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。
B1 noun /ˈtʃɛərmən/

chairman

幸福
Meaning
the leader or head of a meeting, committee, or organization
Example
The chairman opened the meeting with a short speech.
当她获得奖项时，她无法隐藏自己的幸福。
C1 adjective /kənˈsɛntrɪk/

concentric

同心的
Meaning
having a common center, as in circles or spheres
Example
The artist drew concentric circles on the canvas.
艺术家在画布上画了同心圆。
C2 noun /ˈkærɪlɒn/

carillon

风琴钟
Meaning
A set of bells played using a keyboard, usually in a tower.
Example
The carillon bells rang across the town square.
风琴钟的钟声回荡在城市广场上。
C1 noun /ˈkæləs/

callus

皮肤的硬化部分
Meaning
A thickened and hardened part of the skin or soft tissue, especially in an area subjected to friction.
Example
A callus formed on his palm from using tools every day.
由于每天使用工具，他的手掌上长出了一个茧。
C2 noun /kəˈræf/

carafe

玻璃瓶
Meaning
a glass container without handles used for serving drinks like water or wine
Example
The waiter brought a carafe of water to the table.
服务员把一瓶水放在桌子上。
B2 adjective + noun kriˈeɪtɪv ɪɡˈzɪbɪts

creative exhibits

创意展览
Meaning
Artistic displays or presentations that show originality and imagination.
Example
The creative exhibits highlighted recycling possibilities.
创意展览突出了回收的可能性。
A1 noun /ker/

Care

照顾; 保护; 关怀
Meaning
the provision of what is necessary for health, welfare, or protection
Example
The nurse provided excellent care for the elderly patients.
护士为老年患者提供了出色的照顾。
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 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。
B1 noun /ˈkaʊn.səl/

council

委员会
Meaning
an assembly of people chosen or elected to make decisions or advise on matters
Example
The city council voted to improve public transportation.
市议会投票决定改善公共交通。
A2 noun /ˈkaʊ.bɔɪ/

Cowboy

牛仔
Meaning
a man who tends cattle on a ranch, especially in the western United States
Example
The cowboy rode his horse across the vast prairie to find the cattle.
牛仔骑马穿越广阔的草原寻找牛群。
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。
B2 noun /ˈkruː.əl.ti/

Cruelty

残忍; 非人道的待遇; 导致疼痛的行为
Meaning
behavior that causes pain or suffering to others; the quality of being cruel
Example
The documentary exposed the cruelty of factory farming to animals.
纪录片揭示了工厂养殖对动物的残忍行为。
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。
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 /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。
B2 noun /ˈtʃæpəl/

chapel

小教堂
Meaning
A small church or a room used for Christian worship, often within a larger building.
Example
The couple got married in a small countryside chapel.
这对夫妇在一个小教堂里结婚。
C2 noun /ˈkærəˌpeɪs/

carapace

龟或螃蟹的硬壳
Meaning
the hard shell covering the back of some animals like turtles and crabs
Example
The turtle withdrew into its carapace for protection.
乌龟为了保护自己，躲进了它的壳甲。
C2 noun /kɒn.tɪˈɡjuː.ɪ.ti/

contiguity

接壤
Meaning
the state of being in direct contact or next to each other
Example
The contiguity of the two countries facilitates trade.
这两个国家的接壤促进了贸易。
A2 adjective /ˈkʌlərfəl/

colorful

五彩缤纷
Meaning
having bright colors; full of variety or interest
Example
The festival was full of colorful decorations.
这个节日充满了五彩缤纷的装饰。
B2 noun /kəˈθɒlɪsɪzəm/

catholicism

天主教
Meaning
The faith, practice, and church order of the Roman Catholic Church.
Example
Catholicism has a long history and rich traditions.
天主教有着悠久的历史和丰富的传统。
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。
C2 adjective /ˌkɑːmənˈsɛnsɪkəl/

commonsensical

有常识的
Meaning
based on or showing sound practical judgment; sensible
Example
It was commonsensical to carry an umbrella on a rainy day.
在雨天带伞是有常识的。
B1 adverb /ˈkɒnstəntli/

Constantly

不断地; 总是; 不停地
Meaning
continuously over a period of time; always; without stopping
Example
The baby was constantly crying throughout the night.
婴儿整晚不停地哭泣。
C2 adjective /kəmˈbʌstɪbəl/

combustible

可燃的
Meaning
Capable of catching fire and burning easily.
Example
Dry leaves are highly combustible.
干叶子非常易燃。
B2 verb /klɪŋ/

cling

幸福
Meaning
to hold on tightly to someone or something
Example
The child clung to his mother in fear.
她在收到奖项时，无法掩饰自己的幸福。
A2 adjective /ˈkɒmɪk/

comic

喜剧的
Meaning
causing or meant to cause laughter
Example
The movie had several comic scenes.
这部电影有几个喜剧场景。
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。
C2 noun /ˈkɒntrətɑː̃/

contretemps

意外争执
Meaning
an unexpected and unfortunate event or disagreement; a minor dispute
Example
There was a small contretemps between the two colleagues during the meeting.
会议期间，两位同事之间发生了一个小的意外争执。
B2 verb /kənˈveɪ/

convey

传达, 沟通, 运输
Meaning
To communicate or make known; to transport or carry from one place to another.
Example
The teacher conveys the lesson clearly to students.
老师清楚地把课程传达给学生。
B2 verb/noun /ˈsɛnsər/

censor

审查
Meaning
to suppress or remove parts of books, films, or information considered offensive or harmful; a person who does this
Example
The government tried to censor the controversial film.
政府试图审查那部有争议的电影。
B2 noun /ˈkoʊ.brə/

Cobra

眼镜蛇
Meaning
a venomous snake with a hood that can be spread when threatened
Example
The cobra raised its hood and hissed at the intruder.
眼镜蛇抬起了它的帽子，对入侵者发出了嘶嘶声。
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。
C1 adjective /kəmˈpensətɔːri/

compensatory

赔偿性的
Meaning
serving to make up for a loss, damage, or injury
Example
The court awarded him compensatory damages.
法院判给他赔偿性赔偿金。
C1 adjective,noun /kənˈtɪn.dʒənt/

contingent

取决于 / 队伍
Meaning
dependent on something else; a group of people representing an organization
Example
Attendance is contingent on prior registration. / A contingent of students attended the conference.
出席取决于事先注册。 / 一个学生代表团参加了会议。
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。
C2 verb /kəˈmɪz.ə.reɪt/

commiserate

为某人的不幸表示同情或怜悯
Meaning
To express sympathy or compassion for someone's misfortune.
Example
She called her friend to commiserate after his loss.
她给朋友打电话，表示同情，因为他失去了亲人。
B1 noun /ˈkɜː.ri/

Curry

咖喱
Meaning
a dish of meat, vegetables, etc., cooked in an Indian-style sauce with hot spices
Example
I love spicy chicken curry with rice.
我喜欢和米饭一起吃辛辣的鸡肉咖喱。
C1 verb /ˈkrʌmpəl/

crumple

揉捏
Meaning
to crush something into folds or wrinkles
Example
He crumpled the paper and threw it in the bin.
他把纸揉成一团丢进了垃圾桶。
C1 noun /ˈkæn.ɪ.bəl/

Cannibal

食人者
Meaning
a person who eats the flesh of other human beings
Example
The explorer's journal described rumors of cannibals living on the remote island.
探险家的日志描述了有关食人者在偏远岛屿上生活的谣言。
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。
C2 noun /ˈkloʊtʃər/

cloture

辩论结束程序
Meaning
a procedure for ending a debate and taking a vote.
Example
The Senate invoked cloture to end the lengthy debate.
参议院启动了辩论结束程序以结束长时间的辩论。
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。
B2 noun ˈkɔːrəl ˈriːfs

Coral Reefs

珊瑚礁
Meaning
Underwater structures made from calcium carbonate secreted by corals, forming diverse marine ecosystems.
Example
Saint Martin's Island is known for its coral reefs.
圣马丁岛以其珊瑚礁而闻名。
A2 adjective /ˈkeər.ləs/

Careless

粗心的; 疏忽的; 不注意的; 漫不经心的;
Meaning
not giving sufficient attention or thought to avoiding harm or errors; negligent; inattentive
Example
His careless driving caused a serious accident on the highway.
他粗心的驾驶导致高速公路上发生了一起严重的事故。
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。
A2 noun /tʃɜːrtʃ/

church

教堂
Meaning
a building used for public Christian worship
Example
The old church in the village was built in the 18th century.
村里的古老教堂建于18世纪。
A2 noun /ˈkʌl.tʃər/

Culture

文化
Meaning
the arts and other manifestations of human intellectual achievement; the customs and beliefs of a particular society
Example
Learning about different cultures helps us understand and appreciate diversity.
学习不同的文化帮助我们理解和欣赏多样性。
C1 noun /ˈkɒnsəl/

consul

领事 / 大使
Meaning
an official appointed by a government to live in a foreign city and protect its citizens and interests there
Example
The consul assisted travelers who lost their passports.
领事帮助了那些丢失护照的旅行者。
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。
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。
B1 verb kleɪmz

claims

夺取生命
Meaning
To take someone's life, to cause death
Example
Workplace pollution claims thousands of lives annually.
工作场所污染每年夺走成千上万的生命。
B1 verb /kæst/

cast

投掷
Meaning
to throw; to choose actors for a play; to shape metal
Example
The fisherman casts his line into the water.
渔夫把他的鱼线投进水里。
C1 noun /ˈkælɪbər/

caliber

口径
Meaning
The quality of someone's ability or character; the internal diameter of a gun barrel.
Example
The university attracts students of high caliber.
这所大学吸引了高口径的学生。
B2 verb /ˈkɒmprəmaɪz/

compromise

妥协
Meaning
To expose or make vulnerable to danger, suspicion, or disrepute.
Example
Excessive sharing can compromise your privacy.
过度分享可能会危害你的隐私。
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。
B2 noun /ˈkɑn.ʃəns/

Conscience

良心, 道德, 内心的声音
Meaning
an inner feeling or voice viewed as acting as a guide to the rightness or wrongness of one's behavior
Example
His conscience prevented him from lying to his parents about his grades.
他的良心阻止他对父母撒谎，关于他的成绩。
B2 adjective /kəmˈpʌlsəri/

compulsory

强制性
Meaning
Required by law or a rule; obligatory.
Example
Wearing seat belts is compulsory in most countries.
在大多数国家，佩戴安全带是强制性的。
B2 noun /kəmˈpæʃ.ən/

Compassion

同情
Meaning
sympathetic concern for the sufferings or misfortunes of others; deep awareness of suffering with a desire to help
Example
She showed great compassion towards the homeless children by providing them food and shelter.
她通过为无家可归的孩子提供食物和住所，表现出极大的同情。
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 adjective /kənˈsɪliətɔːri/

conciliatory

调解的
Meaning
intended to make someone less angry or more agreeable; soothing
Example
She spoke in a conciliatory tone to ease the tension.
她以调解的语气说话，以缓解紧张气氛。
B1 noun /ˈsɪtɪzən/

citizen

公民
Meaning
a legally recognized subject or national of a state
Example
Every citizen has the right to vote.
每个公民都有投票权。
C2 noun /koʊˈædʒətər/

coadjutor

助手
Meaning
a person who helps or assists another, especially in a religious or official capacity
Example
The bishop appointed a coadjutor to assist him with his duties.
主教任命了一位助手来协助他完成职责。
C2 verb /kənˈdəʊl/

condole

表示同情
Meaning
To express sympathy for someone who is suffering or grieving.
Example
Neighbors came to condole with the family after the tragedy.
邻居们在悲剧后前来向家属表示慰问。
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。
C2 noun /ˈkæriən/

carrion

腐肉
Meaning
the decaying flesh of dead animals
Example
Vultures feed on carrion left in the fields.
秃鹫在田野中觅食腐肉。
C2 noun /ˈkoʊdə/

coda

尾声
Meaning
the concluding passage of a piece of music or a literary work
Example
The novel ends with a reflective coda that ties up the themes.
这部小说以一段反思性的尾声结束，将主题联系起来。
B2 noun /ˌkɑː.bəʊˈhaɪ.dreɪts/

carbohydrates

碳水化合物
Meaning
Organic compounds consisting of carbon, hydrogen, and oxygen, serving as a primary source of energy for the body.
Example
Whole grains are a great source of healthy carbohydrates.
全谷物是健康碳水化合物的极佳来源。
B2 adjective /kəʊˈhɪə.rənt/

coherent

连贯
Meaning
Logical and consistent; forming a unified whole; clear and easy to understand.
Example
His speech was clear and coherent.
他的演讲清晰且连贯。
C1 adjective /ˌkɒnsɪˈkwɛnʃəl/

consequential

重要的
Meaning
Having important or significant consequences; resulting from something.
Example
The meeting was consequential for the future of the project.
这次会议对项目的未来至关重要。
B1 noun /kəʊˌɒp.ərˈeɪ.ʃən/

cooperation

合作
Meaning
The process of working together to the same end.
Example
Cooperation ensures effective problem-solving.
合作确保有效的问题解决。
C1 adjective, noun /ˈkeɪnaɪn/

canine

与狗有关的 / 犬齿
Meaning
Relating to dogs; also refers to the pointed teeth in humans and animals
Example
The police trained a canine unit for search operations.
警察训练了一个警犬单位进行搜寻工作。
A1 noun /ˈkʌl.ər/

color

颜色
Meaning
The property possessed by an object of producing different sensations on the eye as a result of the way it reflects or emits light.
Example
Blue is her favorite color.
蓝色是她最喜欢的颜色。
C1 adjective /ˈkɔːʃənˌɛri/

cautionary

警示性的
Meaning
serving as a warning; intended to prevent problems or mistakes by giving advice or examples
Example
The report offers a cautionary message about unchecked spending.
该报告对失控的支出发出了警示性的信息。
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。
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。
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。
C1 noun kənˈsjuː.mə.rɪ.zəm

consumerism

消费主义
Meaning
The tendency to increase consumption of goods and the importance given to consuming products.
Example
Modern consumerism leads to increased demand for luxury goods.
现代消费主义导致对奢侈品的需求增加。
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。
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。
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 /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。
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。
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.
B1 verb /ˈkɒnsəntreɪt/

concentrate

集中
Meaning
to focus all one's attention or mental effort on a particular object or activity
Example
She tried to concentrate on her studies despite the noise.
尽管有噪音，她仍试图集中精力学习。
C1 adjective /kənˈtɛmptʃuəs/

contemptuous

轻蔑的, 鄙视的
Meaning
showing or expressing contempt; scornful
Example
She gave him a contemptuous glance.
她给了他一个轻蔑的眼神。
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。
B2 noun, verb /kloʊk/

cloak

披风
Meaning
a loose outer garment; to cover, hide, or disguise
Example
The spy cloaked his identity with a false name.
间谍用一个假名字掩藏了他的身份。
C2 noun /ˈkɒl.ə.kwi/

colloquy

正式对话
Meaning
A formal conversation or dialogue, often on serious or academic topics.
Example
The professors engaged in a deep colloquy about the future of education.
教授们就教育的未来进行了深入的对话。
C1 noun /ˈkæviˌæt/

caveat

警告
Meaning
a warning or condition to be considered before taking action
Example
The proposal was accepted with one caveat.
该提案在附带警告的情况下被接受。
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。
C2 adjective ˈkoʊ.dʒənt

cogent

有说服力的
Meaning
Clear, logical, and convincing.
Example
His cogent argument convinced the jury.
他的有力论点说服了陪审团。
B2 noun /kənˈvɪk.ʃən/

conviction

信念
Meaning
A firmly held belief or opinion.
Example
She spoke with conviction, making everyone believe her.
她充满信念地说话，使每个人都相信她。
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 /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 /ˈkærət/

carat

宝石重量单位
Meaning
a unit of weight for precious stones, equal to 200 milligrams
Example
She received a two-carat diamond ring for her engagement.
她收到了一个两克拉的钻石戒指作为订婚礼物。
C2 noun /ˌsɜːrkəmləˈkjuːʃn/

circumlocution

拐弯抹角
Meaning
the use of many words when fewer would do, especially to avoid stating something directly
Example
The politician's speech was filled with circumlocution.
政治家的演讲充满了拐弯抹角。
B2 noun /ˌkɔr.əˈspɑn.dəns/

Correspondence

通信；相似或等价；通过交换信件进行的沟通
Meaning
letters sent or received; similarity or equivalence; communication by exchange of letters
Example
The historical correspondence between the two famous writers was recently published.
两位著名作家之间的历史通信最近已发布。
B1 noun /kæˈʃɪər/

Cashier

收银员
Meaning
a person who handles payments and transactions in a store or bank
Example
The cashier scanned all the items and calculated the total bill.
收银员扫描了所有商品并计算了总账单。
B2 noun /kɜːrl/

Curl

卷发; 螺旋形状
Meaning
a piece of hair that curves or coils; something with a spiral or curved shape
Example
She had beautiful natural curls that framed her face perfectly.
她有美丽的自然卷发，完美地框住了她的脸。
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。
B2 adverb /kənˈsɪdərəbli/

Considerably

显著地；相当大地
Meaning
to a notably large degree; significantly; substantially
Example
The price has increased considerably over the past year.
过去一年价格显著上涨。
B1 noun /ˈkɛmɪkəl/

chemical

化学物质
Meaning
a substance produced by or used in a chemical process
Example
The factory releases harmful chemicals into the river.
工厂将有害的化学物质排放到河中。
B1 noun /ˈkætəɡɔːri/

category

类别
Meaning
a class or division of things regarded as having particular shared characteristics
Example
Books are arranged by category in the library.
书籍在图书馆按类别排列。
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。
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。
B1 adjective /ˈkʌtɪŋ/

cutting

尖锐
Meaning
sharp or severe, often used to describe remarks or actions
Example
Her cutting remarks made everyone feel uncomfortable.
她的尖锐评论让每个人都感到不舒服。
C1 noun /ˈsɪ.nɪk/

Cynic

愤世嫉俗者; 怀疑主义者
Meaning
a person who believes that people are motivated purely by self-interest; someone who is skeptical about human nature
Example
The old cynic believed that politicians only cared about getting votes.
那个老愤世嫉俗者相信政治家只关心获得选票。
A2 adjective /kəˈrɛkt/

correct

正确
Meaning
free from error; accurate
Example
The answer she gave was correct.
她给出的答案是正确的。
A1 verb /kɔːst/

cost

花费
Meaning
to have a price of; to require payment; to cause loss
Example
This book will cost twenty dollars.
这本书将花费二十美元。
C2 adjective /ˈkræbɪd/

crabbed

难以阅读, 脾气坏
Meaning
difficult to read or understand; ill-tempered
Example
His handwriting was crabbed and almost illegible.
他的字迹难以阅读，几乎无法辨认。
A1 noun /ˈkɒf.i/

Coffee

咖啡
Meaning
a hot drink made from roasted coffee beans
Example
I need a cup of coffee to start my morning.
我需要一杯咖啡来开始我的早晨。
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 /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.
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。
A2 noun /ˈkrɪk.ɪt/

Cricket

蟋蟀
Meaning
a jumping insect that makes a chirping sound by rubbing its wings together
Example
We could hear crickets chirping in the evening.
我们能在傍晚听到蟋蟀的叫声。
C1 noun /krʊk/

crook

骗子
Meaning
a dishonest person, especially a criminal
Example
The police finally caught the crook who had been stealing cars.
警方终于抓住了那个偷车的骗子。