call a spade a spade
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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

Curiosity killed the cat

过于好奇可能导致麻烦。
Meaning
Being too inquisitive can lead to trouble.
Example
Don't ask too many questions about his past — **curiosity killed the cat**.
不要问他太多关于过去的问题 — 好奇害死了猫。
idiom

Cheer up

变得更开心; 不要伤心。
Meaning
Become happier; don’t be sad.
Example
It’s not the end of the world—**cheer up**!
这不是世界的末日——振作起来！
idiom

crossing the ethical boundary

以超出道德可接受范围的方式行事
Meaning
to act in a way that goes beyond moral acceptability
Example
Using AI to manipulate emotions may be **crossing the ethical boundary**.
使用人工智能操纵情绪可能是在**跨越道德界限**。
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

cast in stone

固定且不可更改
Meaning
fixed and unchangeable
Example
The script isn’t **cast in stone**; we can make changes.
剧本不是**cast in stone**; 我们可以进行更改。
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

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

carve up

将某物分成部分
Meaning
to divide something into parts
Example
Let’s **carve up** the timeline into manageable phases.
我们把时间线划分为可管理的阶段。
idiom

carry the load

承担困难的责任
Meaning
to take responsibility for something difficult
Example
She had to **carry the load** after her manager resigned.
在她的经理辞职后，她不得不承担责任。
idiom

clue in

给某人必要的信息
Meaning
to give someone the necessary information
Example
Can you **clue me in** on the schedule changes?
你能 **告诉我时间表的变化吗？**
idiom

clickbait

旨在吸引注意并鼓励点击的标题或内容
Meaning
a headline or content designed to attract attention and encourage clicks
Example
That article title is pure **clickbait**.
那篇文章的标题完全是**点击诱饵**。
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

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

come to mind

突然想起某事
Meaning
to suddenly remember something
Example
Her name didn’t **come to mind** at first.
她的名字一开始没有想起来。
idiom

come into one's own

达到成熟或充分发挥潜力
Meaning
to reach a stage of maturity or full potential
Example
She really **came into her own** after starting her own business.
她在开始自己的事业后真正发挥了全部潜力。
idiom

cry wolf

发出虚假的警报
Meaning
to raise a false alarm
Example
Do not **cry wolf** or no one will believe you later.
不要**发出虚假的警报**，否则以后没人会相信你。
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 is the only constant

生活中的一切都在不断变化；没有什么保持不变。
Meaning
Everything in life keeps changing; nothing stays the same.
Example
Don’t resist — change is the only constant.
不要抵抗 — 变化是唯一不变的。
idiom

crossing the aisle

当一个政治家支持或投票支持对立党派时
Meaning
when a politician supports or votes for the opposite party
Example
She surprised everyone by **crossing the aisle** to support the bill.
她通过走过通道来支持该法案，令大家惊讶
idiom

Cover a lot of ground

处理大量的信息或材料
Meaning
to deal with a lot of information or material
Example
The lecture **covered a lot of ground** in just one hour.
这次讲座在一个小时内涵盖了许多内容。
idiom

cut and dry

清晰直接; 没有混淆的空间
Meaning
clear and straightforward; no room for confusion
Example
The decision wasn’t as **cut and dry** as they expected.
决策并不像他们预期的那样明确直接。
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

cut and paste solution

一个简单或没有创意的解决办法；复制的方法
Meaning
an easy or unoriginal fix; a copied approach
Example
That’s just a **cut and paste solution**, not a real fix.
那只是一个复制粘贴的解决方案，不是真正的解决办法。
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

climb the ladder of success

在事业或生活中取得更高的位置
Meaning
to achieve higher positions in career or life
Example
She’s been **climbing the ladder of success** through hard work.
她通过努力工作正在**爬上成功的阶梯**。
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

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 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

cross your fingers

希望事情按你想要的方式发生
Meaning
to hope that things will happen the way you want
Example
I'm **crossing my fingers** that I get the job.
我在祈祷我能得到这份工作。
idiom

Cross my heart

我真诚地发誓或承诺。
Meaning
I swear or promise sincerely.
Example
I will help you, **cross my heart**.
我会帮你，**kruosi mai hat**。
idiom

cold call

在没有事先介绍的情况下联系潜在客户
Meaning
to contact a potential customer without prior introduction
Example
He spent all morning making **cold calls** to new clients.
他花了一整个早上给新客户打**冷电话**。
idiom

cut someone some slack

不那么批评或给某人喘息的机会
Meaning
to be less critical or give someone a break
Example
You should **cut him some slack**—he’s having a tough day.
你应该**宽容他一点**—他今天过得很艰难。
idiom

Crooked as a snake

不诚实或不可靠
Meaning
Dishonest or untrustworthy.
Example
Everyone knows that politician is **crooked as a snake**.
大家都知道那位政治家是**像蛇一样不诚实**。
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

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

cross the bridge when you come to it

不要在事情发生之前担心
Meaning
to not worry about something until it happens
Example
We’ll **cross the bridge when we come to it**.
我们到时候再说。
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

crossed wires

两个人之间的误会
Meaning
a misunderstanding between two people
Example
We must have **crossed wires** about the meeting time.
我们可能在会议时间上产生了误会。
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

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

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

cloud computing

使用远程服务器通过互联网存储、管理和处理数据的做法
Meaning
the practice of using remote servers to store, manage, and process data over the internet
Example
Many businesses rely on **cloud computing** for data storage and security.
许多企业依赖于**云计算**来进行数据存储和安全。
idiom

case closed

事情已经解决或结束
Meaning
the matter is settled or finished
Example
The evidence was clear, so it’s **case closed**.
证据很清楚，所以这是**案件已结**。
idiom

come to light

浮出水面；变得为人所知或被揭示
Meaning
to become known or revealed
Example
The truth finally **came to light** after many years.
真相在多年后终于**浮出水面**。
idiom

close the book on something

停止处理或思考某事
Meaning
to stop dealing with or thinking about something
Example
After years of conflict, they finally **closed the book on** their rivalry.
经过多年的冲突，他们终于**结束了**彼此的对立。
idiom

cutting-edge technology

最先进和创新的可用技术
Meaning
the most advanced and innovative technology available
Example
Our startup uses **cutting-edge technology** to solve complex problems.
我们的初创公司使用**前沿技术**解决复杂的问题。
idiom

count your blessings

为你生活中的美好事物心怀感激
Meaning
be grateful for the good things in your life
Example
Instead of complaining, **count your blessings**.
不要抱怨，**数算你的祝福**。
idiom

code the future

创造塑造未来技术的创新
Meaning
to create innovations that shape future technology
Example
AI researchers are working hard to **code the future**.
人工智能研究人员正在努力**编写未来的代码**。
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。
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

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。
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

cold feet

对某事感到紧张或犹豫不决
Meaning
to feel nervous or hesitant about something
Example
He got **cold feet** before proposing to her.
在向她求婚之前，他感到犹豫不决。
idiom

crunch the data

处理和分析大量数据
Meaning
to process and analyze large amounts of data
Example
The AI can **crunch the data** in seconds and give insights.
AI 可以在几秒钟内处理数据并提供见解。
idiom

cry one’s eyes out

大声哭泣; 无法控制地哭泣
Meaning
to cry a lot; to weep uncontrollably
Example
She **cried her eyes out** after watching that sad movie.
她在看完那部悲伤的电影后**哭得不成样子**。
idiom

cut a deal

迅速达成商业协议
Meaning
to reach a business agreement quickly
Example
They **cut a deal** to save both companies money.
他们**达成了协议**，为两家公司节省资金。
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

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

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

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

confide in someone

相信某人，足够信任到可以告诉他们秘密
Meaning
to trust someone enough to tell them secrets
Example
She only **confides in** her best friend.
她只会向她最好的朋友吐露心事。
idiom

cutthroat competition

极其激烈而残酷的竞争
Meaning
extremely intense and ruthless competition
Example
The smartphone market is a **cutthroat competition**.
智能手机市场是一场残酷的竞争。
idiom

climb to the top

在公司或领域中达到最高职位
Meaning
to achieve the highest position in a company or field
Example
He’s determined to **climb to the top** of his profession.
他决心**登上顶峰**，成为他的职业巅峰。
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

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

caught between a rock and a hard place

进退两难
Meaning
in a difficult situation where any choice you make will have negative consequences
Example
I'm **caught between a rock and a hard place** - both options are terrible.
我进退两难，两个选择都很糟糕。
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 yourself with confidence

以自信和确定的方式行事
Meaning
to behave in a confident and assured way
Example
She always **carries herself with confidence** during meetings.
她在会议期间总是以自信的态度展示自己。
idiom

cross off

从清单中删除一项
Meaning
to remove an item from a list
Example
You can **cross off** the tasks we’ve finished.
你可以把我们完成的任务**从清单中划掉**。
idiom

can’t wait

急切地或迫不及待地等待某事发生
Meaning
to be very eager or impatient for something to happen
Example
I **can’t wait** to see the new movie!
我迫不及待想要看新电影！
idiom

cross that bridge when we come to it

只有在问题出现时才处理问题
Meaning
to deal with a problem only when it arises
Example
Don't worry about the challenges now, we will **cross that bridge when we come to it**.
现在不要担心挑战，我们会**当我们遇到问题时再解决**。
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

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

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

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

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

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

cast the first stone

成为第一个批评或谴责某人的人
Meaning
to be the first to criticize or condemn someone
Example
Before you **cast the first stone**, remember that nobody is perfect.
在你**投下第一颗石头**之前，记住没有人是完美的。
idiom

come out with it

公开或诚实地说出你一直隐藏的事情
Meaning
to say something openly or honestly that you’ve been hiding
Example
Stop hesitating and just **come out with it**!
别再犹豫，直接说出来！
idiom

count on

依赖某人做某事
Meaning
to rely on or trust someone to do something
Example
You can always **count on** me.
你总是可以依赖我。
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

castles in the air

不可能或不现实的梦想或计划
Meaning
dreams or plans that are impossible or unrealistic
Example
He’s always building **castles in the air** about his future.
他总是在为自己的未来建造**castles in the air**。
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

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

call to mind

记起或回想起某事
Meaning
to remember or recall something
Example
This song **calls to mind** my childhood days.
这首歌让我想起了我的童年。
idiom

content is king

高质量的内容是在线成功的最重要因素
Meaning
high-quality content is the most important factor for success online
Example
Never forget that **content is king** in digital marketing.
永远不要忘记，在数字营销中，**内容就是王者**。
idiom

chart your own course

独立规划自己的道路或未来
Meaning
to plan your own path or future independently
Example
He decided to **chart his own course** and become an entrepreneur.
他决定**规划自己的道路**并成为企业家。
idiom

close ranks

在面对反对时团结并相互支持
Meaning
to unite and support each other when facing opposition
Example
The employees **closed ranks** after the company came under criticism.
员工们在公司受到批评后**团结一致**。
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

chain reaction

由一个事件引发的一系列事件
Meaning
a series of events triggered by one event
Example
One breakthrough can start a **chain reaction** of new innovations.
一个突破可以引发新的创新的**连锁反应**。
idiom

couldn't believe my eyes

惊讶得不敢相信自己所看到的
Meaning
to be so surprised that you doubt what you see
Example
I **couldn’t believe my eyes** when I saw the results.
当我看到结果时，我简直不敢相信自己的眼睛。
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

catch some z’s

睡一会儿
Meaning
to get some sleep
Example
I need to **catch some z’s** before the meeting.
我需要在会议前睡一会儿。
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

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

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

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

come to the rescue

帮助陷入困境的人
Meaning
to help someone in trouble
Example
A firefighter **came to the rescue** of the trapped cat.
一名消防员**来救援**被困的猫。
idiom

carry the burden

承担责任或困难的任务
Meaning
to take on responsibility or a difficult task
Example
She had to **carry the burden** of the entire project alone.
她不得不独自**承担整个项目的重担**。
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

chalk up

将某事归因于特定原因
Meaning
to attribute something to a particular cause
Example
Let’s **chalk up** the delay to bad weather.
让我们把延误归因于坏天气。
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

chase rainbows

尝试实现不可能的事情
Meaning
to try to achieve something impossible
Example
Stop **chasing rainbows** and focus on reality.
停止**追逐彩虹**，专注于现实。
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

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

call a truce

同意停止战斗或争论一段时间
Meaning
to agree to stop fighting or arguing for a while
Example
They decided to **call a truce** until the boss arrived.
他们决定在老板到达之前**停战**。
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

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

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

click-through rate

点击广告或链接的用户百分比
Meaning
the percentage of users who click on an ad or link
Example
Our **click-through rate** improved after we changed the headline.
我们的**点击率**在我们更改标题后有所改善。
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

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

cold war

国家之间没有实际战争的政治敌对和紧张状态
Meaning
a state of political hostility and tension between countries without actual warfare
Example
During the 20th century, the United States and the Soviet Union were engaged in a **cold war**.
在20世纪，美国和苏联参与了一场**冷战**。
idiom

cut to the chase

迅速进入正题
Meaning
to get to the point quickly
Example
Let’s **cut to the chase** and discuss the main issue.
让我们直接进入正题，讨论主要问题。
idiom

connect the dots

在思想或信息之间建立联系
Meaning
to make connections between ideas or information
Example
Once you **connect the dots**, the whole picture will make sense.
一旦你**连接点**，整个图像就会有意义。
idiom

create buzz

引起人们对某个产品或活动的兴奋和讨论
Meaning
to generate excitement and talk about a product or event
Example
The teaser video helped **create buzz** before the product launch.
预告视频帮助在产品发布前引起了热议。
idiom

catch the travel bug

变得对旅行非常感兴趣
Meaning
to become very interested in traveling
Example
After visiting Thailand, she really **caught the travel bug**.
参观泰国后，她真的**感染了旅行的虫子**。
idiom

cornerstone of success

实现成功的最重要基础或要素
Meaning
the most important foundation or element for achieving success
Example
Hard work is the **cornerstone of success**.
勤奋工作是**成功的基石**。
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

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。