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idiom

pitch in

加入他人共同完成任务或提供帮助
Meaning
to join others in doing a task or helping
Example
Everyone **pitched in** to clean the park.
每个人都一起清理公园。
idiom

blow the whistle

揭露不正当行为或揭示机密信息
Meaning
to expose wrongdoing or reveal secret information
Example
He **blew the whistle** on the company’s illegal activities.
他揭露了公司非法活动。
idiom

ghost someone

突然停止与某人在线沟通
Meaning
to suddenly stop communicating with someone online
Example
He used to text me daily but then he **ghosted** me.
他以前每天发短信给我，但后来他**鬼化**我了。
idiom

the upper hand

掌握控制或拥有优势
Meaning
to have control or an advantage over someone
Example
The ruling party has **the upper hand** in this situation.
执政党在这种情况下有**上风**。
idiom

in the hot seat

处于困难或不舒服的位置，通常受到公众审视
Meaning
to be in a difficult or uncomfortable position, often with public scrutiny
Example
After the controversy, the mayor was **in the hot seat** for several days.
争议之后，市长几天都处于**炙手可热的位置**。
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

The longest journey begins with a single step

任何大任务都从一个小步骤开始。
Meaning
Any big task starts with a small action.
Example
Don't worry about the entire project, **the longest journey begins with a single step**.
不要担心整个项目，**最长的旅程始于一步**。
idiom

open channels of communication

建立对话或讨论
Meaning
to establish dialogue or discussion
Example
They tried to **open channels of communication** with the neighboring country.
他们试图与邻国打开沟通渠道。
idiom

runway for growth

初创公司在需要更多资金之前所拥有的时间或资源
Meaning
the time or resources a startup has before it needs more funding
Example
The startup has enough **runway for growth** for the next 12 months.
这家初创公司有足够的**跑道为增长**，可以支撑接下来的12个月。
idiom

adapt to new surroundings

适应新的环境或情况
Meaning
to adjust to a new environment or situation
Example
After moving to a new city, it took her some time to **adapt to new surroundings**.
搬到新城市后，她花了一些时间才**适应新的环境**。
idiom

hold someone accountable

让某人对他们的行为负责
Meaning
to make someone take responsibility for their actions
Example
It’s important to **hold people accountable** for their mistakes.
让人们为他们的错误负责是很重要的。
idiom

break someone’s heart

让某人非常伤心
Meaning
to make someone very sad
Example
It really **broke his heart** when she left him.
当她离开他时，真的让他心碎了。
idiom

much obliged

用于礼貌地表达感谢
Meaning
used to express thanks politely
Example
I'm **much obliged** for your help today.
今天非常感谢您的帮助。
idiom

the big bang

一个突如其来的强大开始；通常用于隐喻
Meaning
a sudden and powerful beginning; often used metaphorically
Example
The startup launched with **a big bang** in the tech world.
这家初创公司在科技界以**大爆炸**的方式推出。
idiom

sell like hotcakes

销售得非常快而且数量很大
Meaning
to sell very quickly and in large quantities
Example
After the ad went viral, the product began to **sell like hotcakes**.
广告走红后，这款产品开始热销。
idiom

A bundle of nerves

极度焦虑或紧张。
Meaning
To be extremely anxious or tense.
Example
Before the presentation, she was **a bundle of nerves**.
在演讲之前，她是 **一团神经**。
idiom

have a heavy heart

感到深深的悲伤或忧愁
Meaning
to feel deep sadness or sorrow
Example
He left the city **with a heavy heart**.
他带着沉重的心情离开了城市。
idiom

open Pandora’s box

开始做会引发许多意想不到问题的事情
Meaning
to start something that causes many unforeseen problems
Example
Creating sentient AI could **open Pandora’s box** of ethical challenges.
创造有感知的人工智能可能会打开伦理挑战的潘多拉盒子。
idiom

wrap up

完全完成某事
Meaning
to finish something completely
Example
We need to **wrap up** the report before lunch.
我们需要在午餐前完成报告。
idiom

break down

因强烈的情绪而开始哭泣
Meaning
to start crying due to strong emotions
Example
She **broke down** when she heard the sad news.
她听到悲伤的消息时崩溃了。
idiom

keep it up

继续做好某事
Meaning
to continue doing something well
Example
You’re doing great with your studies—**keep it up**!
你在学业上做得很好——**继续加油**！
idiom

step change

显著的改进或转变
Meaning
a significant improvement or shift
Example
This marks a **step change** in how we approach innovation.
这标志着我们在创新方式上的一个**重大转变**。
idiom

get one's ducks in a row

以适当和高效的方式组织事务
Meaning
to organize things in a proper and efficient way
Example
Before we begin, we need to **get our ducks in a row** and finalize the plan.
在我们开始之前，我们需要**把我们的鸭子排成一行**并完成计划。
idiom

on the world stage

在国际舞台上
Meaning
in the international arena or community
Example
The country's economy is now strong **on the world stage**.
这个国家的经济现在在国际舞台上很强。
idiom

a ray of hope

可能成功或改善的一个小迹象
Meaning
a small sign of possible success or improvement
Example
The new treatment gave patients **a ray of hope**.
新的治疗给患者带来了**希望的光芒**。
idiom

bounce around

随意讨论或在想法之间游走
Meaning
to discuss or move between ideas casually
Example
Let’s **bounce around** concepts before we pick one.
让我们在挑选之前讨论概念。
idiom

give someone the creeps

让某人感到不舒服或害怕
Meaning
to make someone feel uncomfortable or afraid
Example
Old abandoned houses **give me the creeps**.
那些旧的废弃房子让我毛骨悚然。
idiom

measure twice, cut once

在采取行动之前仔细规划
Meaning
to plan carefully before taking action
Example
Before starting the project, he always says **measure twice, cut once**.
在开始项目之前，他总是说 '测量两次，切一次'。
idiom

High stakes

涉及严重的风险或重大后果。
Meaning
Involving serious risk or significant consequences.
Example
Negotiating with investors is a **high-stakes** game.
与投资者谈判是一场**高风险**的游戏。
idiom

get your hands dirty

参与一项任务的艰苦或不愉快的工作
Meaning
to engage in the hard or unpleasant work of a task
Example
A true leader will not hesitate to **get their hands dirty** when necessary.
真正的领导者在必要时不会犹豫弄脏手。
idiom

a sound bite

演讲或采访中简短、易记的部分，常用于媒体
Meaning
a short, memorable part of a speech or interview often used in the media
Example
The politician's **sound bite** was replayed on every major news channel.
政治家的**摘录**在所有主要新闻频道上重复播放。
idiom

wear the crown

处于领导或权力的位置
Meaning
to be in a position of leadership or power
Example
It's not easy to **wear the crown** and handle all responsibilities.
要穿上**wear the crown**并处理所有的责任并不容易。
idiom

back up

支持或备份重要数据
Meaning
to support or to make a copy of important data
Example
Can you **back up** my explanation during the meeting?
你能在会议期间支持我的解释吗？
idiom

Keep at it

继续尝试，即使很困难。
Meaning
Continue trying even when it’s hard.
Example
Don’t give up—just **keep at it**.
不要放弃—继续努力。
idiom

fear of the unknown

对未知事物的焦虑
Meaning
anxiety about things that are unfamiliar or uncertain
Example
Many people avoid change because of their **fear of the unknown**.
许多人因为他们的**对未知的恐惧**而避免变化。
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

strong password

一个难以被他人猜到的密码，通常结合字母、数字和符号
Meaning
a password that is difficult for others to guess, typically combining letters, numbers, and symbols
Example
For better security, always use a **strong password** with at least eight characters.
为了更好的安全性，始终使用至少包含八个字符的**强密码**。
idiom

on shaky ground

在不确定或不稳定的情况下
Meaning
in an uncertain or unstable situation
Example
His business is **on shaky ground** after the market crash.
他的生意在市场崩溃后**岌岌可危**。
idiom

to fall head over heels

深深地爱上
Meaning
to fall deeply in love
Example
He **fell head over heels** for her the moment they met.
他**深深地爱上**了她，当他们见面时。
idiom

draw up

准备官方文件或计划
Meaning
to prepare an official document or plan
Example
The lawyer will **draw up** the agreement this afternoon.
律师将在下午起草协议。
idiom

patch up

修复某物或改善受损的关系
Meaning
to repair something or improve a damaged relationship
Example
They managed to **patch up** their friendship after the argument.
他们在争吵后成功地修复了他们的友谊。
idiom

pull at heartstrings

在观众中引起强烈的情感，通常是同情或悲伤
Meaning
to evoke strong emotions, usually sympathy or sadness, in an audience
Example
The charity’s commercial really **pulls at the heartstrings**.
慈善机构的广告真的**触动了心弦**。
idiom

out of one’s comfort zone

做一些不熟悉或具有挑战性的事情
Meaning
doing something unfamiliar or challenging
Example
She stepped **out of her comfort zone** to take a new job.
她走出舒适区去接受一份新工作。
idiom

wild goose chase

一项无用或绝望的追求
Meaning
a useless or hopeless pursuit
Example
Looking for that document was a **wild goose chase**.
寻找那个文件简直是一个**无用的追逐**。
idiom

pioneer a path

成为第一个做新颖或创新的事情的人。
Meaning
to be the first to do something new or innovative.
Example
She is determined to **pioneer a path** in sustainable fashion.
她决心在可持续时尚领域**开辟一条道路**。
idiom

add color to

使某事变得更加有趣或生动
Meaning
to make something more interesting or lively
Example
The teacher’s stories **added color to** the history lesson.
老师的故事**为历史课增添了色彩**。
idiom

run on empty

继续工作，即使感到疲劳或精力耗尽
Meaning
to continue working even when you are tired or out of energy
Example
He’s been **running on empty** for weeks without a break.
他已经连续几个星期没有休息，继续工作。
idiom

When there’s life, there’s hope

只要有生命，就有希望。
Meaning
As long as you are alive, there is a chance for improvement.
Example
Don’t give up—**when there’s life, there’s hope**.
不要放弃—只要有生命，就有希望。
idiom

read between the lines

理解某事背后的隐藏含义
Meaning
to understand the hidden meaning behind something
Example
She said everything was fine, but if you **read between the lines**, you could tell she was upset.
她说一切都很好，但如果你仔细体会，你会发现她其实很难过。
idiom

go in one ear and out the other

听了某事但很快就忘记了
Meaning
to hear something but quickly forget it
Example
Whatever I tell him **goes in one ear and out the other**.
我告诉他的事都从一只耳朵进，从另一只耳朵出。
idiom

in a state of shock

极度惊讶或不安
Meaning
to be extremely surprised or upset
Example
She was **in a state of shock** after hearing the news.
她在听到新闻后**处于震惊状态**。
idiom

To be in someone's corner

支持或捍卫某人
Meaning
To support or defend someone.
Example
Even though they were having disagreements, she was always **in his corner**.
尽管他们有分歧，她始终站在**他的一边**
idiom

table the discussion

将讨论推迟到稍后
Meaning
to postpone discussing something until later
Example
They decided to **table the discussion** until next week.
他们决定将讨论推迟到下周。
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

hit the tourist trail

参观受欢迎的旅游目的地
Meaning
to visit popular tourist destinations
Example
We decided to **hit the tourist trail** after exploring the local villages.
在探索完当地村庄后，我们决定参观受欢迎的旅游目的地。
idiom

the whole nine yards

一切；整个努力
Meaning
everything; the entire effort
Example
She went **the whole nine yards** to make her wedding perfect.
她为使自己的婚礼完美付出了所有努力。
idiom

how do you do

一种正式的问候语，用于第一次见面时
Meaning
a formal greeting used when meeting someone for the first time
Example
**How do you do?** It’s a pleasure to meet you.
**你好吗？** 很高兴见到你。
idiom

virus of doubt

一种迅速传播的不确定感
Meaning
a feeling of uncertainty that spreads quickly
Example
A **virus of doubt** spread after the project delay.
项目延迟后，不确定的病毒开始蔓延。
idiom

Breaking new ground

做出重要的新发现或创新；做一些前所未做过的事情。
Meaning
To make an important new discovery or innovation; to do something that has never been done before.
Example
The new trade agreement is **breaking new ground** in international relations.
新的贸易协议在国际关系中**开创了新局面**。
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

eat your heart out

默默地因嫉妒或渴望而受苦
Meaning
to suffer silently from jealousy or longing
Example
He’s been **eating his heart out** since his ex got engaged.
自从他的前任订婚后，他一直在**吃掉自己的心**。
idiom

A Jekyll and Hyde

一个人格中有两个完全不同面的人。
Meaning
A person with two very different sides to their personality.
Example
He’s like **a Jekyll and Hyde**—nice one moment and cruel the next.
他就像一个杰基尔与海德——一会儿温柔，一会儿残酷。
idiom

rest easy

摆脱忧虑或恐惧
Meaning
to be free from worry or fear
Example
You can **rest easy** knowing everything is under control.
你可以放心，因为一切都在掌控之中。
idiom

betray someone's trust

背叛某人的信任
Meaning
to break someone's confidence in you
Example
She would never **betray your trust**.
她永远不会背叛你的信任。
idiom

a work in progress

仍在开发或改进中的事物
Meaning
something that is still being developed or improved
Example
The project is still **a work in progress**, but it's going well.
该项目仍在进行中，但进展良好。
idiom

Bet the farm

在一个重大决定上冒险一切。
Meaning
To risk everything on one big decision.
Example
He **bet the farm** on that business deal.
他在那笔商业交易中**赌上了一切**。
idiom

Hope for the best, prepare for the worst

始终保持乐观，但为任何结果做好准备。
Meaning
Always stay optimistic, but be ready for any outcome.
Example
She was nervous about the exam but decided to **hope for the best, prepare for the worst**.
她对考试感到紧张，但决定**希望最好，准备最坏**。
idiom

tag along

未经邀请加入别人的在线活动或对话
Meaning
to join someone’s online activity or conversation uninvited
Example
He just **tagged along** in our group chat without asking.
他没有问就加入了我们的群聊。
idiom

turn up the heat

增加压力或强度
Meaning
to increase pressure or intensity
Example
The scientists decided to **turn up the heat** on the experiment.
科学家们决定在实验中增加压力。
idiom

time's up

某事或某人的时间已经结束
Meaning
the time for something or someone has ended
Example
You have to finish the test now. **Time's up**!
你现在必须完成测试。时间到了！
idiom

stand by someone

保持忠诚或支持
Meaning
to remain loyal or supportive
Example
True friends **stand by** each other in hard times.
真正的朋友在困难时期彼此支持。
idiom

to bend the rules

做出例外或不严格遵循法律或规则
Meaning
to make exceptions or not strictly follow the law or rules
Example
Sometimes, officers **bend the rules** to help the needy.
有时，官员们**弯曲规则**以帮助有需要的人。
idiom

break one's word

未能履行承诺
Meaning
to fail to keep a promise
Example
Don’t **break your word**; people rely on you.
不要**打破承诺**；人们依赖你。
idiom

ring up

计算并记录销售
Meaning
to calculate and record a sale
Example
The cashier will **ring up** your items at the counter.
收银员将在柜台为您登记商品。
idiom

out of shape

由于缺乏锻炼而变得不健康或不适合
Meaning
to be unfit or unhealthy due to lack of exercise
Example
I’m so **out of shape** after sitting at a desk all day.
我整天坐在桌子前，完全不健康了。
idiom

go out of your way

为某人特别努力
Meaning
to make a special effort to help someone
Example
She **went out of her way** to help me with my project.
她为了帮我完成项目付出了特别的努力
idiom

an old hand

在某事上非常有经验的人
Meaning
someone very experienced at something
Example
She’s **an old hand** at managing big events.
她是管理大型活动的**老手**。
idiom

The darkest hour is just before the dawn

完全对某事感到厌倦或烦恼。
Meaning
Things often seem worst just before they improve.
Example
Things are rough right now, but remember, **the darkest hour is just before the dawn**.
我已经厌倦了听他的借口。
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

a piece of cake

非常容易做的事情
Meaning
something that is very easy to do
Example
The exam was **a piece of cake** for me.
这次考试对我来说是**小菜一碟**。
idiom

wander off

漫无目的或方向地走
Meaning
to walk away without purpose or direction
Example
The child **wandered off** while we were shopping.
小孩在我们购物的时候**走开**了。
idiom

place your confidence in

信任或依赖某人或某事
Meaning
to trust or rely on someone or something
Example
He **placed his confidence in** the team.
他**把信任寄托在**团队上。
idiom

on the up and up

诚实的；真诚的；没有参与任何不正当行为
Meaning
honest; truthful; not involved in any wrongdoing
Example
She’s always been **on the up and up** with me.
她一直对我非常诚实。
idiom

bail someone out

帮助某人摆脱困境
Meaning
to help someone out of a difficult situation
Example
His friend **bailed him out** when he ran out of money.
他的朋友在他没钱时**救了他**。
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

frame of mind

一个人的情绪或心理状态
Meaning
a person's mood or mental state
Example
He’s not in the right **frame of mind** to make decisions.
他现在不在做决定的正确心理状态下。
idiom

Disrupt the market

通过创新彻底改变一个行业。
Meaning
To radically change an industry with innovation.
Example
Their app aims to **disrupt the market** for food delivery.
他们的应用旨在**扰乱市场**，以进行食品配送。
idiom

You can do it

要有信心; 相信自己的能力。
Meaning
Have confidence; believe in your ability.
Example
Don’t doubt yourself, **you can do it**!
不要怀疑自己，你可以做到！
idiom

grinning from ear to ear

因为高兴而笑得很灿烂
Meaning
smiling broadly due to happiness
Example
He was **grinning from ear to ear** after receiving the gift.
他收到礼物后笑得合不拢嘴。
idiom

a black hole

一个地方或情况，事情丢失后再也找不到
Meaning
a place or situation where things are lost, never to be found again
Example
The document I was looking for seems to have disappeared into **a black hole**.
我找的文件似乎已经消失在**黑洞**里了。
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

new lease on life

在困难时期之后重新开始生活或做某事的机会
Meaning
a chance to live or start something again after a period of difficulty
Example
Winning the award gave her a **new lease on life**.
获奖给了她生活的新机会。
idiom

a window of opportunity

一个短暂的时期，在此期间可以有效地行动
Meaning
a short period when one has a chance to act effectively
Example
We have **a window of opportunity** to finalize the deal this week.
我们有**一个机会之窗**来完成这周的交易。
idiom

an open book

一个容易理解或非常诚实的人
Meaning
someone who is easy to understand or very honest
Example
He’s **an open book**; you can always tell what he’s thinking.
他是一本打开的书；你总能知道他在想什么。
idiom

the political hot potato

一个没有人愿意处理的争议问题
Meaning
a controversial issue that no one wants to handle
Example
Corruption has become **a political hot potato** in the country.
腐败已成为该国的**一个争议的政治问题**。
idiom

time flies

时间过得非常快
Meaning
time passes very quickly
Example
**Time flies** when you’re having fun.
当你玩得开心时，时间飞逝
idiom

dial into

连接到电话或会议
Meaning
to connect to a call or meeting
Example
We’ll **dial into** the client briefing at noon.
我们将在中午连接到客户简报会。
idiom

to be ahead of the curve

比别人更先进
Meaning
to be more advanced than others
Example
Her research was **ahead of the curve** in the field of artificial intelligence.
她的研究在人工智能领域**领先**。
idiom

under construction

正在开发或建设中
Meaning
in the process of being developed or built
Example
Our new website is still **under construction**.
我们的网站仍在建设中。
idiom

to sketch out

画出某物的大致计划或轮廓
Meaning
to make a rough plan or outline of something
Example
The director **sketched out** the concept before filming began.
导演在拍摄开始之前画出了概念。
idiom

juggle with

同时处理多个任务或责任
Meaning
to handle several tasks or responsibilities at once
Example
She’s **juggling with** classes, work, and childcare.
她正在同时处理课堂、工作和儿童照料。
idiom

penny wise and pound foolish

小额钱财谨慎，大额钱财浪费
Meaning
careful with small amounts of money but wasteful with large amounts
Example
He’s **penny wise and pound foolish** when it comes to investments.
他在投资上是**penny wise and pound foolish**。
idiom

break the internet

在网上引起大量关注和讨论
Meaning
to cause an enormous amount of attention and discussion online
Example
The celebrity's new photo **broke the internet**.
这位名人的新照片**打破了互联网**。
idiom

disruptive innovation

一种显著改变或彻底革新现有市场或行业的创新
Meaning
an innovation that significantly alters or revolutionizes an existing market or industry
Example
The smartphone was a **disruptive innovation** that changed the way we communicate.
智能手机是一个**颠覆性创新**，它改变了我们交流的方式。
idiom

rising tide lifts all boats

经济增长惠及所有人；经济的普遍改善帮助所有参与者
Meaning
economic growth benefits everyone; a general improvement in the economy helps all participants
Example
The government's new policies are helping the economy, and as a result, **a rising tide lifts all boats**.
政府的新政策正在帮助经济，因此，**上涨的潮水提升所有船只**。
idiom

take the blame

对某事错误承担责任
Meaning
to accept responsibility for something wrong
Example
He decided to **take the blame** for the team's failure.
他决定为团队的失败**承担责任**。
idiom

from the ground up

从头开始完全构建或启动某事
Meaning
to build or start something completely from the beginning
Example
The software was built **from the ground up** using new code.
该软件是使用新代码从头开始开发的。
idiom

stand by your principles

在困难的情况下仍然忠于你的价值观
Meaning
to remain loyal to your values, even in difficult situations
Example
She always **stands by her principles** in tough times.
她在困难时期总是坚持自己的原则。
idiom

roll up one's sleeves

准备努力工作或接受挑战
Meaning
to prepare to work hard or take on a challenge
Example
We need to **roll up our sleeves** if we want to finish this task on time.
如果我们想按时完成这个任务，我们需要**卷起袖子**。
idiom

dirty politics

被认为不诚实或不道德的政治活动
Meaning
political activities that are considered dishonest or unethical
Example
His campaign was full of **dirty politics**, using false information to attack his opponent.
他的竞选充满了**dirty politics**，利用虚假信息攻击对手。
idiom

hand in

将某物交给有权力的人
Meaning
to submit something to someone in authority
Example
Please **hand in** your assignment by Friday morning.
请在周五早上前交上作业。
idiom

blow one’s top

突然变得非常生气
Meaning
to suddenly become very angry
Example
He **blew his top** when he saw the mistake.
当他看到错误时，他非常生气。
idiom

get a move on

赶快或更快地移动
Meaning
to hurry up or move faster
Example
**Get a move on**, or we’ll miss the train!
**快点!**, 否则我们会错过火车!
idiom

Unicorn company

一家估值超过十亿美元的初创公司。
Meaning
A startup valued at over one billion dollars.
Example
Becoming a **unicorn company** is every founder’s dream.
成为一家**独角兽公司**是每个创始人的梦想。
idiom

hook the audience

吸引并保持观众的兴趣
Meaning
to capture and maintain the interest of the audience
Example
You need a strong headline to **hook the audience** immediately.
你需要一个强有力的标题来立即**吸引观众**的注意。
idiom

Buy low, sell high

购买商品或资产并以利润出售的策略。
Meaning
The strategy of buying goods or assets cheaply and selling them for a profit.
Example
Every investor dreams to **buy low, sell high**.
每个投资者都梦想着**低买高卖**。
idiom

double-cross someone

在假装支持某人后背叛某人
Meaning
to betray someone after pretending to support them
Example
He promised to help but **double-crossed** me in the end.
他答应帮忙，但最后背叛了我。
idiom

pay off

经过努力后取得良好的结果
Meaning
to yield good results after effort
Example
All those late nights finally **paid off** during the launch.
所有那些熬夜终于在发布时得到回报。
idiom

Keep it under your hat

保持某事秘密。
Meaning
To keep something secret.
Example
I’ll tell you a secret, but **keep it under your hat**.
我会告诉你一个秘密，但**保密**。
idiom

in good spirits

心情愉快且充满信心
Meaning
to be cheerful and confident
Example
She was **in good spirits** after her presentation.
她在演讲后心情愉快且充满信心。
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**。