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idiom

check back

稍后回来获取更新
Meaning
to return at a later time for an update
Example
Please **check back** next week for the final list.
请在下周**回来**查看最终名单。
idiom

come to terms

在讨论或冲突后达成协议
Meaning
to reach an agreement after discussion or conflict
Example
After weeks of negotiation, both sides finally **came to terms**.
经过几周的谈判，双方最终达成了协议。
idiom

change with the times

适应社会或科技的变化
Meaning
to adapt to the changes in society or technology
Example
In order to stay relevant in the business, it's important to **change with the times**.
为了在商业中保持相关性，重要的是要**与时俱进**。
idiom

cool as a cucumber

非常冷静和镇定
Meaning
very calm and composed
Example
He stayed **cool as a cucumber** during the meeting.
他在会议期间保持非常冷静。
idiom

carry out one's duties

执行分配给自己的任务或责任
Meaning
to perform one's assigned tasks or responsibilities
Example
He always **carries out his duties** with honesty and dedication.
他总是以诚实和奉献精神完成自己的职责。
B2 idiom

close but no cigar

几乎正确或成功，但不完全
Meaning
Almost correct or successful but not quite
Example
He was close to winning the competition, but close but no cigar.
他差点赢得比赛，但最终还是没能成功。
idiom

call on

请某人发言或做某事
Meaning
to request someone to speak or do something
Example
The teacher will **call on** you if you raise your hand.
如果你举手，老师会叫你发言。
idiom

come straight to the point

直接而诚实，不浪费时间
Meaning
to be direct and honest without wasting time
Example
Please **come straight to the point** and tell me what happened.
请直接了当告诉我发生了什么。
idiom

cliffhanger

一个让观众悬念重重的结局
Meaning
an ending that leaves the audience in suspense
Example
The episode ended on a **cliffhanger**, so we can’t wait for the next one.
这一集以**悬崖式结局**结束，我们迫不及待地等待下一集。
idiom

call to arms

为了捍卫某个原因而采取行动的号召
Meaning
a call to take action, especially to defend a cause
Example
The leader’s speech was a **call to arms** for all citizens to fight corruption.
领导人的演讲是一个**号召大家行动起来**，呼吁所有公民与腐败作斗争。
idiom

cross the aisle

与对立政治党派的成员合作
Meaning
to cooperate with members of the opposing political party
Example
He often **crosses the aisle** to work on bipartisan issues.
他经常**穿过过道**与对方党派合作处理两党问题。
idiom

change of scene

新的环境或情况
Meaning
a new environment or situation
Example
After months of work, I needed a **change of scene**.
经过几个月的工作，我需要一个**场景变化**。
idiom

cat nap

白天短暂的小睡
Meaning
a short sleep during the day
Example
I took a **cat nap** before the meeting.
我在会议前小睡了一会儿。
idiom

clash of wills

两个决心坚定的人之间的冲突
Meaning
a conflict between two determined people
Example
It was a **clash of wills** between the manager and the employee.
这是经理和员工之间的**克拉什 夫 威尔斯**。
idiom

call someone out

公开批评某人的行为或行动
Meaning
to criticize someone publicly for their behavior or actions
Example
She **called him out** for being rude to the waiter.
她因对服务员无礼而**公开批评**了他。
idiom

can't believe your eyes

惊讶到怀疑自己看到的东西
Meaning
to be so surprised that you doubt what you are seeing
Example
I **couldn’t believe my eyes** when I saw the snowfall.
当我看到雪花时，我简直不敢相信自己的眼睛。
idiom

catch up

在很长一段时间后见面并交谈; 达到与某人相同的水平
Meaning
to meet and talk after a long time; to reach the same level as someone
Example
Let’s **catch up** over coffee this weekend.
这个周末我们一起喝咖啡聊聊。
idiom

cross the line

做被认为不可接受的事情
Meaning
to do something that is considered unacceptable
Example
He **crossed the line** when he insulted her in front of everyone.
当他当着所有人的面侮辱她时，他**越界了**。
idiom

cover up

掩盖某事的真相
Meaning
to hide the truth about something
Example
They tried to **cover up** the mistake.
他们试图掩盖这个错误。
idiom

cut the cord

摆脱对某人或某事的依赖
Meaning
to become independent from someone or something
Example
It’s time for you to **cut the cord** and live on your own.
是时候你独立生活，不再依赖别人了。
idiom

cover all the bases

为每个可能的情况做好准备
Meaning
to prepare for every possible situation
Example
We need to **cover all the bases** before the meeting.
我们需要在会议之前做好准备。
idiom

come back to earth

从兴奋或做白日梦中回到现实
Meaning
to return to reality after being excited or daydreaming
Example
After the vacation, it’s time to **come back to earth**.
假期后，应该是时候**回到现实**了。
idiom

Cook up a story

编造一个虚假的故事。
Meaning
To invent a false story.
Example
He **cooked up a story** to explain why he was late.
他编造了一个故事来解释他为什么迟到。
idiom

come a long way

取得了很大的进步或改善
Meaning
to make a lot of progress or improvement
Example
She has **come a long way** since she started her career.
她自从开始自己的事业后取得了巨大的进步。
idiom

conversion rate

网站访问者中采取期望行动（如购买或注册）的百分比。
Meaning
The percentage of visitors to a website who take a desired action, such as making a purchase or signing up.
Example
Our **conversion rate** has significantly improved after the redesign of the website.
网站重新设计后，我们的**转化率**显著提高了。
idiom

calm down

冷静下来或放松
Meaning
to become less angry or upset
Example
Please **calm down**, everything is under control.
请冷静下来，一切都在掌控之中。
idiom

Clean hands

无罪或没有负罪感。
Meaning
To be innocent or free from guilt.
Example
He claims to have **clean hands** in the scandal.
他声称在丑闻中有**clean hands**。
idiom

cut somebody some slack

因为某人此刻有问题，不像通常那样严厉批评他们
Meaning
to not judge someone as severely as you usually would because they are having problems at the present time
Example
He's been under a lot of stress lately, so let's **cut him some slack**.
他最近压力很大，我们给他一些喘息的时间
idiom

crash the system

使系统或过程完全崩溃
Meaning
to cause complete failure in a system or process
Example
One wrong command can **crash the system**.
一个错误的命令可能会使系统崩溃。
idiom

change the game

引入某种能显著改变行业或领域的事物
Meaning
to introduce something that significantly alters an industry or field
Example
5G technology will **change the game** for mobile communication.
5G 技术将会为移动通信**带来变革**。
idiom

carry a torch for someone

继续爱一个不爱你的人
Meaning
to continue loving someone who doesn’t love you back
Example
He’s still **carrying a torch for** his ex-girlfriend.
他仍然爱着他的前女友。
idiom

color outside the lines

以创造性和不拘一格的方式思考或行动
Meaning
to think or act creatively and unconventionally
Example
Good designers always **color outside the lines**.
优秀的设计师总是**超越界限**思考。
idiom

change of heart

对某事或某人感受的变化
Meaning
a change in the way one feels about something or someone
Example
He had a **change of heart** and decided to stay.
他改变了主意，决定留下。
idiom

cut your teeth

在特定领域或工作中获得初步经验
Meaning
to gain initial experience in a particular area or job
Example
He **cut his teeth** in the banking industry before starting his own firm.
在创办自己的公司之前，他在银行业获得了初步经验。
idiom

cold shoulder

故意忽视某人
Meaning
to ignore someone deliberately
Example
After the argument, she gave him the **cold shoulder** for days.
争吵后，她几天没有理他。
idiom

call around

通过电话联系几个人或地方
Meaning
to contact several people or places by phone
Example
I’ll **call around** to find a venue with parking.
我会打电话给几个地方，找一个有停车位的地方。
idiom

come through

在困难的情况下做出预期或承诺的事情
Meaning
to do what is expected or promised, especially in difficult situations
Example
She always **comes through** when we need her most.
她总是在我们最需要她的时候帮助我们。
idiom

close the deal

成功地达成协议
Meaning
to successfully finalize an agreement
Example
After weeks of negotiation, they finally **closed the deal**.
经过数周的谈判，他们终于达成了协议。
idiom

clean up one’s act

改善行为或表现；变得更加负责任
Meaning
to improve behavior or performance; to become more responsible
Example
The factory had to **clean up its act** to avoid heavy fines.
工厂必须**改善行为**以避免重罚。
idiom

come into the spotlight

获得公众关注或认可
Meaning
to receive public attention or recognition
Example
She **came into the spotlight** after winning the award.
她 **进入了聚光灯** 之后获得了奖项。
idiom

carry the responsibility

负责某事或对其负责
Meaning
to be in charge of something or to be responsible for it
Example
As the project leader, he had to **carry the responsibility** for the entire team.
作为项目经理，他必须承担整个团队的责任。
idiom

climb the ladder

在职业中步步高升
Meaning
to move up in position or success, especially in a career
Example
He worked hard to **climb the ladder** in his company.
他努力工作以在公司中**步步高升**。
idiom

corner the market

主导特定市场
Meaning
to dominate a particular market
Example
They’ve managed to **corner the market** in organic products.
他们已经成功主导了有机产品市场。
idiom

come clean

告诉隐藏的事情的真相
Meaning
to tell the truth about something you have been hiding
Example
He finally **came clean** about what happened.
他终于坦白了发生了什么。
idiom

Cut one’s losses

停止做一些失败的事情，以避免进一步的损失。
Meaning
To stop doing something that is failing to avoid further loss.
Example
It’s better to **cut your losses** and exit the market now.
现在最好是**减少你的损失**并退出市场。
idiom

change of guard

领导或权力的更替
Meaning
a change in leadership or authority
Example
There has been a **change of guard** in the ruling party.
在执政党发生了**换防**。
idiom

cracks in the wall

系统或关系中的问题或弱点迹象
Meaning
signs of problems or weaknesses in a system or relationship
Example
There are **cracks in the wall** of their friendship lately.
最近他们的友谊出现了裂痕。
idiom

cross your heart and hope to die

真诚地发誓某事是真的
Meaning
to swear that something is true, often said with sincerity
Example
I **cross my heart and hope to die** that I will never lie to you.
我发誓并希望死去，我绝不会对你撒谎。
idiom

cover all the angles

从各个角度审视一个故事或问题
Meaning
to examine a story or issue from every perspective
Example
The journalist tried to **cover all the angles** before publishing the article.
记者在发布文章之前尽力**涵盖所有角度**。
idiom

cry a river

哭很多或表现出极度的悲伤
Meaning
to cry a lot or show extreme sadness
Example
He **cried a river** after hearing the news.
他听到消息后哭了很多。
idiom

caught between two stools

因试图同时做两件事而失败
Meaning
to fail because of trying to do two things at once
Example
He was **caught between two stools**—trying to please both his boss and his team.
他**左右为难**——试图让他的老板和团队都满意。
idiom

Caught with your pants down

被抓到没有准备或感到尴尬。
Meaning
To be caught unprepared or embarrassed.
Example
The manager was **caught with his pants down** when asked about the figures.
当被问及数据时，经理毫无准备地被抓到。
idiom

come down hard on

严厉地惩罚或批评某人
Meaning
to punish or criticize someone severely
Example
The company **came down hard on** employees who broke the rules.
公司严厉地惩罚了违反规则的员工。
idiom

Caught on camera

在视频中录制；视觉捕捉
Meaning
Recorded on video; captured visually
Example
The accident was **caught on camera** by a passerby.
这起事故被**拍摄在相机上**，由一位路人。
idiom

call the bluff

挑战某人证明他们的权威或主张
Meaning
to challenge someone to prove their authority or claim
Example
She **called his bluff** when he threatened to quit.
当他威胁辞职时，她揭穿了他的虚张声势。
idiom

cut both ways

既有积极的一面，也有消极的一面
Meaning
to have both positive and negative effects
Example
Working from home **cuts both ways** – you save time but lose social interaction.
在家工作**有利也有弊**——节省时间，但失去了社交互动。
idiom

call it a night

停止正在做的事并回家，特别是在派对后
Meaning
to stop what you are doing and go home, especially after a party
Example
It’s getting late, let’s **call it a night**.
已经很晚了，我们回家吧。
idiom

cross that bridge when you come to it

等问题发生时再处理，不要提前
Meaning
to deal with a problem when it happens, not before
Example
We will **cross that bridge when we come to it**.
等到了那一步我们再说。
idiom

code like a machine

在编程中极快且高效地工作
Meaning
to work extremely fast and efficiently on programming
Example
She can **code like a machine** when a deadline is near.
当截止日期临近时，她可以**像机器一样编程**。
idiom

crybaby

一个容易抱怨或哭泣的人
Meaning
someone who complains or cries easily
Example
Don’t be a **crybaby**, it’s just a small scratch.
不要做一个**爱哭鬼**，这只是一个小小的擦伤。
idiom

cop a plea

为了避免更严厉的惩罚，承认较轻的罪名
Meaning
to plead guilty to a lesser charge in order to avoid a more severe penalty
Example
He decided to **cop a plea** and serve a shorter sentence.
他决定认罪并服较短的刑期。
idiom

cry over spilled milk

为不能改变的事而烦恼
Meaning
to be upset about something that cannot be changed
Example
There's no use **crying over spilled milk**.
为已经发生的事哭泣没有意义。
idiom

catch the train

准时赶上火车或事件
Meaning
to be on time for a train or event
Example
Hurry up or you’ll not **catch the train**!
快点，否则你会错过火车！
idiom

call a spade a spade

诚实直接地说话，即使它令人不悦
Meaning
to speak honestly and directly, even if it’s unpleasant
Example
She always **calls a spade a spade**, no matter who gets offended.
她总是直言不讳，不管谁生气。
idiom

come of age

达到成熟；完全发展
Meaning
to reach maturity; to become fully developed
Example
The company has **come of age** in the last few years.
公司在最近几年已经成熟。
idiom

couldn’t care less

表现出完全的冷漠
Meaning
to show total indifference
Example
She **couldn’t care less** about what people think.
她对别人怎么想完全不在乎。
idiom

cut loose

自由地表现并享受自己
Meaning
to behave freely and enjoy oneself
Example
It’s the weekend—time to **cut loose**!
是周末了—是时候**放松**了！
idiom

canary in the coal mine

潜在危险的早期警告
Meaning
an early warning of potential danger
Example
Melting glaciers are the **canary in the coal mine** for climate change.
融化的冰川是气候变化的**煤矿中的金丝雀**。
idiom

clash of civilizations

不同文化、宗教或文明群体之间的冲突
Meaning
the conflict between different cultural, religious, or civilizational groups
Example
The debate about cultural differences is often seen as a **clash of civilizations**.
关于文化差异的辩论常被视为一次**文明的冲突**。
idiom

corner office

公司中成功或高职位的象征
Meaning
a symbol of success or high position in a company
Example
Everyone dreams of getting the **corner office** one day.
每个人都梦想有一天能得到 **角落办公室**。
idiom

cry over spilt milk

为无法改变的事情而懊恼
Meaning
to be upset about something that cannot be changed
Example
There’s no use **crying over spilt milk**.
为洒掉的牛奶哭是没有用的。
idiom

cross the ethical line

做某事，被认为在道德上是错误的
Meaning
to do something that is considered morally wrong in ethics
Example
Selling user data without permission **crosses the ethical line**.
未经许可出售用户数据 **越过了道德界限**。
idiom

crack of dawn

非常早的早晨
Meaning
very early in the morning
Example
He wakes up at the **crack of dawn** every day.
他每天早上在黎明时分醒来。
idiom

carve out a niche

为自己创造一个独特的地方或角色
Meaning
to establish a unique place or role for oneself
Example
She **carved out a niche** as a specialist in art restoration.
她作为艺术修复专家**创造了一个自己的定位**。
idiom

crack the books

打开书本并开始学习
Meaning
to open your books and begin studying
Example
It's time to **crack the books** and prepare for finals.
是时候打开书本并为期末考试做准备。
idiom

crime doesn't pay

做错事或非法行为永远无法带来真正的成功
Meaning
doing wrong or illegal things will never bring true success
Example
He learned the hard way that **crime doesn't pay**.
他通过艰难的方式学到了，**犯罪不会带来收益**。
idiom

cry one’s heart out

因悲伤而痛哭
Meaning
to cry very hard due to sadness
Example
She **cried her heart out** after the breakup.
她在分手后痛哭流涕。
idiom

cash in on

从某个情况中获利，通常很快
Meaning
to profit from a situation, often quickly
Example
Several startups tried to **cash in on** the sudden trend.
几个初创公司试图从突如其来的趋势中获利。
idiom

chill out

放松并停止生气或紧张
Meaning
to relax and stop being angry or nervous
Example
You need to **chill out** and enjoy the weekend.
你需要放松并享受周末。
idiom

crash and burn

彻底或突然失败
Meaning
to fail completely or suddenly
Example
The new software update **crashed and burned** after launch.
新的软件更新在发布后**彻底失败了**。
idiom

carry weight

拥有影响力或重要性
Meaning
to have influence or importance
Example
His opinion **carries a lot of weight** in this organization.
他的意见在这个组织中**具有很大的影响力**。
idiom

call it quits

停止或结束某事
Meaning
to stop or end something
Example
After working for hours, they decided to **call it quits** for the day.
经过几个小时的工作后，他们决定**结束今天**的工作。
idiom

cut and paste

用很小的变化复制某些东西
Meaning
to copy something with little change
Example
You can't just **cut and paste** ideas from others.
你不能只是从别人那里**剪切并粘贴**想法。
idiom

carry forward

将某事移至以后的时间
Meaning
to move something to a later period
Example
We’ll **carry forward** the unused budget to next quarter.
我们将未使用的预算转到下个季度。
idiom

check up on

确认某人或某事是否一切顺利
Meaning
to verify that someone or something is doing well
Example
I’ll **check up on** the interns after the training session.
我将在训练结束后检查实习生。
idiom

chip in

为共同的目标贡献金钱或努力
Meaning
to contribute money or effort to a shared goal
Example
Everyone agreed to **chip in** for Maya’s farewell gift.
大家一致同意为玛雅的告别礼物出钱。
idiom

come to terms with

在经过一些谈判后达成协议或接受一种情况
Meaning
to reach an agreement or accept a situation after some negotiation
Example
It took some time, but eventually we **came to terms with** the new policy.
这花了一些时间，但最终我们**接受了**新政策。
idiom

cut through the red tape

去除官僚障碍或延误
Meaning
to remove bureaucratic obstacles or delays
Example
The new policy helps **cut through the red tape** and speed up approvals.
新政策有助于去除官僚障碍并加快审批。
idiom

chatterbox

一个说很多话的人
Meaning
a person who talks a lot
Example
My little sister is a real **chatterbox**.
我的小妹妹是个真正的喋喋不休的人。
idiom

carry the weight

承担重大责任或负担
Meaning
to take on a large responsibility or burden
Example
As the team leader, it's his job to **carry the weight** of the project's success.
作为团队领导，承担**重担**是他的工作，确保项目的成功。
idiom

Carry the torch

继续支持从过去传承下来的事业或理念。
Meaning
To continue supporting a cause or idea passed from the past.
Example
Young activists are **carrying the torch** of civil rights today.
今天的年轻活动家们正在**传承火炬**，继续推进公民权利。
idiom

crack the whip

利用权威让人们更加努力工作或遵守规则
Meaning
to use authority to make people work harder or obey rules
Example
The new manager is **cracking the whip** to improve productivity.
新经理正在**crack the whip**以提高生产力。
idiom

caught red-handed

在做错事时被当场抓住
Meaning
to be caught in the act of doing something wrong
Example
The thief was **caught red-handed** stealing the wallet.
小偷在偷钱包时被**当场抓住**。
idiom

cold fish

一个没有情感或缺乏温暖的人
Meaning
a person who is unemotional or lacks warmth
Example
He’s such a **cold fish**; he never shows his feelings.
他真是个**冷血的家伙**；他从不表现自己的感受。
idiom

come out of one's shell

变得更外向或更自信
Meaning
to become more outgoing or confident
Example
She used to be shy, but now she has finally **come out of her shell**.
她以前很害羞，但现在她终于**走出了她的壳**。
idiom

crack down on

采取严格措施停止某事
Meaning
to take strict action to stop something
Example
The city plans to **crack down on** illegal parking downtown.
城市计划对市中心的非法停车采取严格措施。
idiom

carry on about

激动或恼火地长时间讲述
Meaning
to speak at length in an excited or annoyed way
Example
He kept **carrying on about** the missed deadline all morning.
他整整一早上都在**讲述**错过的最后期限。
idiom

catch a bug

在系统中找到问题或缺陷
Meaning
to find a problem or defect in a system
Example
The developer was able to **catch a bug** in the system before it went live.
开发人员在系统上线之前成功**发现了一个错误**。
idiom

come out on top

在某种情况下最好的或最成功的
Meaning
to be the best or most successful in a situation
Example
Despite the competition, she **came out on top**.
尽管有竞争，她**成功脱颖而出**。
idiom

check over

仔细检查某事以发现错误
Meaning
to examine something carefully for mistakes
Example
Let’s **check over** the draft before sending it.
在发送之前我们检查过草稿。
idiom

cost an arm and a leg

非常昂贵
Meaning
to be very expensive
Example
That designer bag **cost an arm and a leg**.
那个设计师包包**非常昂贵**。
idiom

carry through

尽管有困难仍然完成某事
Meaning
to complete something despite difficulties
Example
She promised to **carry through** with the training program.
她答应要**完成**培训项目。
idiom

code your way out

通过编程技能解决问题
Meaning
to solve a problem through programming skills
Example
When the system crashed, she managed to **code her way out**.
当系统崩溃时，她成功地**编程解决了问题**。
idiom

carry the can

接受责任或指责，通常是不公平的。
Meaning
to accept responsibility or blame, often unfairly.
Example
She was left to **carry the can** after her manager left.
经理离开后，她不得不 **承担责任**。
idiom

Cross the Rubicon

做出不可逆转的决定或采取无法回头的一步。
Meaning
To make an irreversible decision or take a step from which there is no turning back.
Example
By quitting his job, he **crossed the Rubicon** and committed to his startup dream.
辞去工作后，他跨越了鲁比孔河，全心投入自己的创业梦想。
idiom

clean up your act

开始更负责任地行为。
Meaning
to start behaving more responsibly.
Example
You need to **clean up your act** if you want that promotion.
如果你想要那个晋升，你需要**clean up your act**。
idiom

crunch the numbers

处理数据或分析统计
Meaning
to process data or analyze statistics
Example
AI can **crunch the numbers** faster than any human.
人工智能可以比任何人更快地分析数据。
idiom

copycat

模仿另一个人的人
Meaning
someone who imitates another person
Example
She’s such a **copycat**, always doing what I do.
她是个**copycat**，总是做我做的事。
idiom

chip away at

逐步在某事上工作以取得结果
Meaning
to gradually work on something to achieve a result
Example
She **chipped away at** her thesis every evening until it was finished.
她每晚都**逐步工作**她的论文，直到完成。
idiom

check in on

监视或查看某人或某物的状态
Meaning
to monitor or see how someone or something is doing
Example
Could you **check in on** the kids while I'm out?
你能在我出去时**check in on**孩子们吗？
idiom

carbon neutral

实现碳足迹净零，释放的二氧化碳量等于从大气中移除的量
Meaning
achieving a net-zero carbon footprint, where the amount of carbon dioxide released is equal to the amount removed from the atmosphere
Example
By planting trees and reducing emissions, the company is aiming to become **carbon neutral**.
通过植树和减少排放，公司正努力成为 **碳中和**。
idiom

chapter and verse

提供关于某事的完整和准确细节
Meaning
to provide full and exact details about something
Example
She can quote **chapter and verse** to support her argument.
她可以引用**chapter and verse**来支持她的论点。
idiom

carry the weight of the world on one's shoulders

感到对许多问题或职责负责
Meaning
to feel responsible for many problems or duties
Example
She always **carries the weight of the world on her shoulders**, even when it's not her fault.
她总是肩负着整个世界的重担，即使那不是她的错。
idiom

Cultural melting pot

不同文化融合的地方
Meaning
A place where different cultures blend together
Example
New York is often described as a **cultural melting pot**.
纽约常被描述为一个**文化大熔炉**。
idiom

come full circle

经历一系列变化后回到原来的状态
Meaning
to return to the original state after a series of changes
Example
After years abroad, she’s **come full circle** and moved back home.
在国外多年后，她回到了原点并搬回了家。
idiom

Cross one’s mind

突然想到某事。
Meaning
To suddenly think of something.
Example
It never **crossed my mind** that he could be lying.
我从未**想过**他可能在撒谎。
idiom

clamp down

采取强硬措施来制止某事
Meaning
to take strong action to stop something
Example
The manager decided to **clamp down** on late arrivals.
经理决定对迟到的人采取严格措施。
idiom

chart a new course

规划新的方向或策略
Meaning
to plan a new direction or strategy
Example
After the crisis, the CEO decided to **chart a new course**.
危机过后，首席执行官决定制定新的方针。
idiom

cream of the crop

一组中的最佳；最优选择
Meaning
the best of a group; the finest selection
Example
These students are the **cream of the crop**.
这些学生是**最棒的**。
idiom

cloak and dagger

涉及秘密、神秘和欺骗
Meaning
involving secrecy, mystery, and deception
Example
The meeting was surrounded by **cloak and dagger** secrecy.
会议充满了‘cloak and dagger’的秘密。
idiom

cry your heart out

因悲伤而大声哭泣
Meaning
to cry a lot due to sadness
Example
She **cried her heart out** after hearing the bad news.
听到坏消息后，她痛哭流涕。