boil over
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All Types idiom phrasal-verb proverb
Content locale
EN 英语 BN 孟加拉语 HI 印地语 ES 西班牙语 FR 法语 DE 德语 RU 俄语 ZH 中文 JA 日语
All Expression Cards All Expressions
idiom

boil over

当愤怒变得无法控制时
Meaning
when anger becomes too much to control
Example
The argument finally **boiled over** into a shouting match.
争论最终爆发成了一场大喊大叫的争执。
idiom

blow your top

非常生气
Meaning
to become very angry
Example
He **blew his top** when he found out about the mistake.
他在得知错误后**火冒三丈**。
idiom

be sure of yourself

对你的能力或意见有信心
Meaning
to have confidence in your abilities or opinions
Example
To be a leader, you must **be sure of yourself**.
成为一名领导者，你必须对自己有信心。
idiom

blue sky thinking

创造性和富有远见的思维，忽视实际限制
Meaning
creative and visionary thinking that ignores practical limitations
Example
Let's engage in some **blue sky thinking** to come up with innovative solutions.
让我们进行一些**蓝天思维**，提出创新的解决方案。
idiom

big-hearted

非常友善和慷慨
Meaning
very kind and generous
Example
He is known as a **big-hearted** man.
他被认为是一个**心地善良**的人。
idiom

bright-eyed and bushy-tailed

精神饱满、充满活力，尤其是在早晨
Meaning
alert and full of energy, especially in the morning
Example
He came to work **bright-eyed and bushy-tailed** after the weekend.
他在周末后精神饱满地来上班。
idiom

Break the news

告诉某人重要或坏消息。
Meaning
To tell someone important or bad news.
Example
He didn’t know how to **break the news** to his parents.
他不知道如何将**这个消息传达**给他的父母。
idiom

be a person of your word

成为一个遵守承诺的人
Meaning
to be someone who keeps their promises
Example
She is truly **a person of her word**, always doing what she says.
她真的是一个信守承诺的人，总是做她说的事情。
idiom

be accountable for

对某事负责并能够解释它
Meaning
to be responsible for something and able to explain it
Example
As the team leader, he is **accountable for the project's outcome**.
作为团队领导，他对**项目的结果负责**。
idiom

busy bee

一个总是忙碌且活跃的人
Meaning
a person who is always busy and active
Example
She’s a **busy bee**, always working on something.
她是一个**忙碌的蜜蜂**，总是在忙碌着做事。
idiom

blow your own trumpet

吹嘘或炫耀自己的成就
Meaning
to boast or brag about your achievements
Example
He never stops **blowing his own trumpet** about his success.
他从不停止**吹嘘自己的成功**。
idiom

burst with ideas

一下子有许多创意的想法
Meaning
to have many creative ideas at once
Example
After watching the film, he was **bursting with ideas** for his next project.
看完电影后，他为下一个项目有了许多创意的想法。
idiom

bold as brass

非常自信，完全不害羞
Meaning
to be very confident and not shy at all
Example
She walked into the meeting **bold as brass**.
她毫不羞怯地走进了会议。
idiom

be at someone’s beck and call

随时准备帮助或服从某人
Meaning
to always be ready to help or obey someone
Example
The assistant is **at his boss’s beck and call**.
助理始终在老板的召唤下。
idiom

boot up

启动计算机或系统
Meaning
to start a computer or system
Example
My laptop takes forever to **boot up**.
我的笔记本需要很长时间才能启动。
idiom

back to the drawing board

在失败后重新开始
Meaning
to start over again after a failure
Example
Our proposal was rejected, so it's **back to the drawing board**.
我们的提案被拒绝了，所以我们必须**重新开始**。
idiom

brush aside

把某事视为不重要并置之不理
Meaning
to dismiss something as unimportant
Example
Management **brushed aside** the rumors during the briefing.
管理层在简报中**无视**了这些谣言。
idiom

burning the candle at both ends

没有足够的休息，拼命工作
Meaning
working very hard without enough rest
Example
He is **burning the candle at both ends** with two jobs.
他正在做两个工作，拼命工作。
idiom

bury the lead

隐藏故事中最重要的部分
Meaning
to hide the most important part of the story
Example
Don’t **bury the lead**—mention the main point first.
不要**埋没重点**—首先提到主要点。
idiom

bargain for

预期或计划某事
Meaning
to expect or plan for something
Example
The workload was more than we **bargained for**.
工作量比我们预期的更多。
idiom

behind the eight ball

处于困难的位置或处于不利地位
Meaning
to be in a difficult position or disadvantage
Example
Without proper funding, the project is **behind the eight ball**.
没有适当的资金，项目处于**困难的境地**。
idiom

be on the same page

与某人达成一致或有相同的理解
Meaning
to agree with someone or have the same understanding
Example
Before getting married, they made sure they were **on the same page** about their future.
在结婚之前，他们确保他们在关于未来的事情上**达成一致**。
idiom

buckle under the strain

屈服于压力或压力
Meaning
to give in to stress or pressure
Example
She refused to **buckle under the strain** and kept going.
她拒绝了**在压力下屈服**并继续前进。
idiom

Break bread with someone

共享一餐; 通过食物建立联系
Meaning
To share a meal; to bond over food
Example
They decided to **break bread** to celebrate their new partnership.
他们决定一起**分享食物**以庆祝他们的新伙伴关系。
idiom

beyond one’s grasp

太难理解或实现
Meaning
too difficult to understand or achieve
Example
Quantum physics is **beyond my grasp** right now.
量子物理学现在对我来说**难以理解**。
idiom

beat down

重复用力打击，例如强烈的阳光或雨水
Meaning
to strike repeatedly with force, such as intense sun or rain
Example
The afternoon sun **beat down** on the field all day.
下午的阳光 **照射** 在田野上整整一天。
idiom

balance the books

确保收入和支出相等
Meaning
to make sure income and expenses are equal
Example
The accountant worked late to **balance the books**.
会计加班工作，直到**平衡账本**。
idiom

break up

结束一段浪漫关系
Meaning
to end a romantic relationship
Example
They decided to **break up** after five years together.
他们决定在一起五年后分手。
idiom

brick by brick

逐步而稳定地实现某事
Meaning
to achieve something gradually and steadily
Example
He built his business **brick by brick**.
他一点一点地建立了自己的事业。
idiom

backdoor entry

一种秘密或非官方的方式进入某物
Meaning
a secret or unofficial way to access something
Example
Hackers found a **backdoor entry** into the company’s database.
黑客找到了公司数据库中的**后门入口**。
idiom

build a better mousetrap

改进现有的产品或想法
Meaning
to improve an existing product or idea
Example
Every tech company tries to **build a better mousetrap** in its field.
每个科技公司都在其领域尝试**创造更好的捕鼠器**。
idiom

bury the differences

忘记争执，重新成为朋友
Meaning
to forget disagreements and be friendly again
Example
They decided to **bury their differences** and work together.
他们决定**埋葬他们的分歧**，一起工作。
idiom

bravery in the face of danger

在面对危险时表现出勇气
Meaning
showing courage even when facing danger
Example
The firefighter showed **bravery in the face of danger**.
消防员在面对危险时表现出了勇气。
idiom

bite your tongue

强忍不说出自己想说的话
Meaning
to stop yourself from saying something you want to say
Example
I had to **bite my tongue** when my boss took credit for my work.
当老板抢走我的功劳时，我不得不忍住不说话。
idiom

bear the brunt

承担某件不愉快事情的主要责任或痛苦
Meaning
to take the main responsibility or suffering of something unpleasant
Example
The junior staff had to **bear the brunt** of the manager’s anger.
初级员工不得不承受经理愤怒的主要部分。
idiom

bite off more than you can chew

承担超出自己能力范围的任务
Meaning
to take on a task that is too big to handle
Example
I think I **bit off more than I can chew** by agreeing to manage three projects at once.
我觉得我同意同时管理三个项目是承担了超出自己能力范围的任务。
idiom

brand ambassador

通过个人影响力推广品牌的人
Meaning
a person who promotes a brand through personal influence
Example
They hired a celebrity as their **brand ambassador**.
他们聘请了一位名人作为他们的**品牌大使**。
idiom

believe you’re good enough

接受你是有能力和值得的人
Meaning
to accept that you are capable and worthy
Example
To overcome fear, you must **believe you’re good enough**.
要克服恐惧，你必须相信自己足够好。
idiom

be comfortable in your own skin

对自己是谁感到自信和幸福
Meaning
to be confident and happy with who you are
Example
It took years for her to **be comfortable in her own skin**.
她花了好几年才能在自己的皮肤中感到舒适。
idiom

brainchild of

由某人创造的想法或发明
Meaning
an idea or invention created by someone
Example
ChatGPT is the **brainchild of** OpenAI researchers.
ChatGPT 是 **brainchild of** OpenAI 研究人员的创意。
idiom

balance of trade

一个国家的出口和进口之间的差异
Meaning
the difference between a country's exports and imports
Example
A negative **balance of trade** can weaken a nation's currency.
负的贸易平衡可能削弱一个国家的货币
idiom

blow off steam

表达愤怒或沮丧以使自己感觉更好
Meaning
to express anger or frustration so that you feel better
Example
He went for a run to **blow off steam** after the argument.
他在争论后去跑步以发泄情绪。
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

bad luck

不幸或运气差的情况
Meaning
unfortunate or unlucky situation
Example
It’s just **bad luck** that it rained on our picnic day.
只是**运气不好**，在我们的野餐日下雨了。
idiom

behind schedule

比计划或预期的时间晚
Meaning
later than planned or expected
Example
The flight is **behind schedule** because of the storm.
航班因暴风雨而**延误**。
idiom

be lost for words

惊讶到无法言语
Meaning
to be so surprised that you cannot speak
Example
I was **lost for words** when I won the prize.
当我赢得奖品时，我 **无言以对**。
idiom

born poor, die rich

从贫穷开始，但通过努力工作变得富有
Meaning
to start life poor but become rich through hard work
Example
He’s the kind of man who wants to **born poor, die rich**.
他是那种想要**从贫穷出生，死时富有**的人。
idiom

bridge the gap

减少差异或改善关系
Meaning
to reduce differences or improve relations
Example
The treaty aims to **bridge the gap** between the two sides.
该条约旨在弥合双方之间的差距。
idiom

Break like the wind

快速移动或经过；有时带有幽默意味。
Meaning
To move or pass quickly; sometimes used humorously.
Example
He ran **like the wind** to catch the bus.
他像风一样跑去赶公交车。
idiom

bosom friends

非常亲密和亲切的朋友
Meaning
very close and intimate friends
Example
They have been **bosom friends** since childhood.
他们从小就是非常亲密的朋友。
idiom

bring the curtain down

结束某事；完成一场表演或活动
Meaning
to end something; to finish a performance or event
Example
The concert **brought the curtain down** on the music festival.
音乐会**为音乐节画上了句号**。
idiom

break new ground

做一些创新或开创性的事情
Meaning
to do something innovative or pioneering
Example
Their research **broke new ground** in medical science.
他们的研究在医学科学上开辟了新天地。
idiom

break down the problem

逐步分析一个问题
Meaning
to analyze a problem step by step
Example
Let’s **break down the problem** to understand it better.
让我们逐步分析这个问题，以便更好地理解它。
idiom

branch off

从主路线或发展线分开
Meaning
to separate from a main route or line of development
Example
The hiking path will **branch off** near the lake.
徒步小径将在湖边分支。
idiom

bargain chip

在谈判中用于获得更好交易的有价值的东西
Meaning
something of value used in negotiations to get a better deal
Example
His offer of a longer contract was a strong **bargain chip**.
他提出的更长期合同是一个强有力的 **bargain chip**。
idiom

bird’s eye view

从高处看到的视角；概览
Meaning
a view from a high position; an overview
Example
We got a **bird’s eye view** of the city from the tower.
我们从塔楼上得到了城市的**鸟瞰视角**。
idiom

blow someone's mind

让某人感到震惊或惊讶
Meaning
to amaze or astonish someone
Example
The magic show really **blew my mind**.
魔术表演真的让我大吃一惊。
idiom

Be as good as your word

Zuò nǐ suǒ chéngnuò de shì.
Meaning
To do what you promised to do.
Example
He said he’d help and he’s **as good as his word**.
Tā shuō tā huì bāngzhù, ér tā **rú tā de huà yīyàng hǎo**.
idiom

battle of wills

双方都拒绝让步的冲突
Meaning
a conflict where both sides refuse to give up
Example
It became a **battle of wills** between the manager and the team leader.
它变成了经理和团队领导之间的**意志之战**。
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

blow someone away

让某人大为震惊或印象深刻
Meaning
to impress or surprise someone greatly
Example
Her performance really **blew me away**.
她的表演真的让我震惊。
idiom

by leaps and bounds

快速进展或改善
Meaning
to progress or improve very quickly
Example
Her English has improved **by leaps and bounds**.
她的英语进步**非常快**。
idiom

Bide one’s time

耐心等待合适的机会。
Meaning
To wait patiently for the right opportunity.
Example
She decided to **bide her time** before making a move.
她决定在采取行动前**耐心等待时机**。
idiom

botnet

一组感染了恶意软件的计算机网络，能够被黑客远程控制
Meaning
a network of computers infected with malware that are controlled remotely by a hacker
Example
The hacker used the **botnet** to launch a massive DDoS attack on the server.
黑客利用**僵尸网络**发动了大规模的DDoS攻击。
idiom

build brand loyalty

建立对品牌的长期信任和依赖
Meaning
to create long-term trust and attachment to a brand
Example
Consistent quality helps **build brand loyalty** among customers.
持续的质量帮助在客户中建立品牌忠诚度。
idiom

be a good sport

在困难的情况下保持公平和积极
Meaning
to be fair and positive in difficult situations
Example
Even when she lost the game, she was **a good sport** and congratulated the winner.
即使她输了比赛，她还是一个好运动员，祝贺了获胜者。
idiom

back on one’s feet

恢复并再次变得健康
Meaning
to recover and be healthy again
Example
After a few days of rest, he’s finally **back on his feet**.
休息几天后，他终于**恢复过来**。
idiom

bring to life

使某事物更有趣或更逼真
Meaning
to make something more interesting or realistic
Example
The artist’s use of color really **brought the painting to life**.
艺术家使用的颜色真的 **使画作栩栩如生**。
idiom

bloom where you are planted

充分利用你所处的环境
Meaning
to make the best of the situation you are in
Example
Even in a small town, she managed to **bloom where she was planted**.
即使在一个小镇，她也设法在她所在的地方茁壮成长。
idiom

bounce back

在挫折或失败后迅速恢复
Meaning
to recover quickly after a setback or failure
Example
She **bounced back** after losing the competition.
她在输掉比赛后迅速恢复了过来。
idiom

blow up in your face

一个计划或情况突然出错并造成麻烦
Meaning
a plan or situation that suddenly goes wrong and causes trouble
Example
His plan to impress the boss **blew up in his face**.
他打算给老板留下深刻印象的计划**在他面前爆炸**。
idiom

bolt from the blue

一个突然和意想不到的事件
Meaning
a sudden and unexpected event
Example
The project cancellation came as a **bolt from the blue**.
项目的取消就像晴天霹雳一样。
idiom

busy as a bee

非常活跃或勤奋
Meaning
very active or hardworking
Example
She’s **as busy as a bee** preparing for the wedding.
她正在为婚礼**像蜜蜂一样忙碌**。
idiom

burst of creativity

一阵突然的创造性想法涌现
Meaning
a sudden outpouring of creative ideas
Example
She had a **burst of creativity** and finished the design in one go.
她有了**创造力的迸发**，并一次性完成了设计。
idiom

break the bank

花费太多钱；把所有的钱都用光
Meaning
to cost too much; to use up all your money
Example
Buying that car will **break the bank**.
买那辆车会让你**倾家荡产**。
idiom

backroom deal

由有权势的人达成的秘密协议
Meaning
a secret agreement made by powerful people
Example
The media exposed the **backroom deal** between the two parties.
媒体揭露了两方之间的**秘密协议**。
idiom

broken-hearted

因某事或某人而极度悲伤
Meaning
extremely sad about something or someone
Example
He was **broken-hearted** after the breakup.
分手后，他心碎了。
idiom

burst with joy

高兴得难以抑制情感
Meaning
to be so happy that it’s hard to contain emotions
Example
The parents **burst with joy** when their child won the prize.
当孩子赢得奖项时，父母**高兴得合不拢嘴**。
idiom

Bury yourself in books

把所有时间都花在学习上
Meaning
To spend all your time studying
Example
He **buried himself in books** before the finals.
他在期末考试前埋头于书本中。
idiom

bring down the house

获得观众的热烈掌声
Meaning
to get an enthusiastic applause from the audience
Example
Her solo performance **brought down the house**.
她的独唱表演**赢得了满堂彩**。
idiom

blind justice

不受外部因素影响的公正正义
Meaning
justice that is impartial and not influenced by external factors
Example
**Blind justice** treats everyone the same, regardless of wealth or status.
**盲目的正义** 对每个人一视同仁，不论财富或地位。
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

buckle down

开始认真工作
Meaning
to start working seriously
Example
If you want to pass the exam, you’d better **buckle down** and study.
如果你想通过考试，你最好**buckle down**并开始学习。
idiom

barefaced lie

大胆而无耻的谎言
Meaning
a bold and shameless lie
Example
His excuse was a **barefaced lie**.
他的借口是一个无耻的谎言。
idiom

brand loyalty

消费者倾向于不断购买相同品牌的趋势
Meaning
the tendency of consumers to keep buying the same brand
Example
**Brand loyalty** often depends on consistent quality.
**品牌忠诚度**通常依赖于持续的质量。
idiom

break the mold

做不同于传统的事情
Meaning
to do something differently from tradition
Example
She **broke the mold** by becoming the first female CEO.
她通过成为首位女性CEO，打破常规。
idiom

be above board

以诚实和公开的方式行事
Meaning
to act in an honest and open manner
Example
She is always **above board** in all her dealings.
她在所有的交易中总是**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

backdoor access

一种秘密或未经授权的方式访问系统或信息
Meaning
a secret or unauthorized way to access a system or information
Example
Hackers found a **backdoor access** to the company’s database.
黑客发现了进入公司数据库的后门通道。
idiom

beyond one’s comprehension

太难以理解
Meaning
too difficult to understand
Example
Quantum physics is **beyond my comprehension**.
量子物理学**超出了我的理解范围**。
idiom

by the skin of one’s teeth

勉强逃脱或达成某事。
Meaning
To narrowly escape or achieve something by a very small margin.
Example
I passed the exam **by the skin of my teeth**.
我勉强通过了考试。
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

beyond words

无法用言语描述的极大或极端
Meaning
too great or extreme to be described in words
Example
Her kindness was **beyond words**.
她的善良是**无法用言语描述的**。
idiom

Behind the curve

相比竞争对手，处于落后或发展较慢的状态。
Meaning
To be less advanced or slow compared to competitors.
Example
Our company is **behind the curve** in adopting AI technologies.
我们的公司在采用人工智能技术方面落后于竞争对手。
idiom

big data

极大的数据集，可以通过计算分析来揭示模式、趋势和关联。
Meaning
Extremely large data sets that may be analyzed computationally to reveal patterns, trends, and associations.
Example
The company uses **big data** to improve customer experience.
公司使用**大数据**来提升客户体验。
idiom

blood is thicker than water

家庭关系比其他关系更强大
Meaning
family relationships are stronger than others
Example
He helped his brother because **blood is thicker than water**.
他帮助了他的兄弟，因为家庭关系比其他关系更强大。
idiom

break the clutter

在拥挤或竞争激烈的市场中脱颖而出
Meaning
to stand out in a crowded or competitive market
Example
A good tagline can help a brand **break the clutter**.
一个好的标语可以帮助品牌在混乱中脱颖而出。
idiom

Build bridges, not walls

建立联系和友谊，而不是筑起隔阂
Meaning
Make connections and friendships rather than creating barriers
Example
Instead of fighting, let's **build bridges, not walls**.
与其争吵，不如建立桥梁，而不是高墙。
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

brighten up

变得更快乐或更开心
Meaning
to become happier or more cheerful
Example
Her face **brightened up** when she saw her friends.
当她看到她的朋友们时，她的脸**亮了起来**。
idiom

break a promise

违背承诺
Meaning
to fail to do what one promised
Example
She **broke her promise** and didn’t call him.
她违背了承诺，没有给他打电话。
idiom

Building castles in the air

有不切实际或不实际的计划或梦想。
Meaning
To have unrealistic or impractical plans or dreams.
Example
She’s always **building castles in the air**, dreaming of a perfect world.
她总是在**空中建造城堡**，梦想着一个完美的世界。
idiom

burn a hole in one's pocket

很快或不负责任地花钱
Meaning
to spend money quickly or irresponsibly
Example
After receiving his bonus, he couldn't resist and **burned a hole in his pocket** by buying a new car.
收到奖金后，他忍不住买了一辆新车，把钱都花光了。
idiom

back on your feet

恢复健康了
Meaning
recovered and healthy again
Example
It’s good to see you **back on your feet** after the flu.
很高兴看到你在得流感后恢复健康。
idiom

beyond the scope

超出计划或预期的重点范围
Meaning
outside the planned or expected area of focus
Example
The new feature was beyond the scope of the original project but added great value.
新功能超出了原项目的范围，但增加了很大的价值。
idiom

build character

通过挑战发展积极的品质或力量
Meaning
to develop positive qualities or strength through challenges
Example
Going through this process will **build character** in the team.
通过这个过程将**锻炼团队的性格**。
idiom

behind closed doors

私下里; 秘密地
Meaning
in private; secretly
Example
The deal was made **behind closed doors**.
交易是在闭门造车的情况下达成的。
idiom

burn your boats

承诺采取行动而没有退路
Meaning
to commit yourself to a course of action without a way back
Example
He **burned his boats** when he quit his job to start a business.
当他辞去工作并开始创业时，他**烧掉了自己的船**。
idiom

back to square one

重新开始
Meaning
to start over again
Example
After the computer crashed, I had to go **back to square one** with my report.
电脑崩溃后，我不得不重新开始我的报告。
idiom

ballpark figure

一个近似的估算或数字
Meaning
an approximate estimate or number
Example
Can you give me a **ballpark figure** for the project cost?
你能给我一个项目成本的**近似估算**吗？
idiom

blow out of proportion

夸大或过度陈述某事
Meaning
to exaggerate or overstate something
Example
The media **blew the story out of proportion**.
媒体把故事夸大了。
idiom

break down in tears

突然开始哭泣
Meaning
to start crying suddenly
Example
She **broke down in tears** after hearing the sad story.
她在听到悲伤的故事后**突然哭了起来**。
idiom

bring luck

带来好运
Meaning
to cause good fortune
Example
This bracelet is said to **bring luck** to whoever wears it.
有人说，这只手链会带来好运给佩戴它的人。
idiom

bend the law

以不诚实的方式利用法律来达到目的
Meaning
to use the law in a dishonest way to achieve something
Example
Some lawyers know how to **bend the law** to help their clients.
一些律师知道如何**钻法律的空子**来帮助他们的客户。
idiom

back into

无意中向后移到某物中
Meaning
to move backwards into something unintentionally
Example
I nearly **backed into** the recycling bin while parking.
我差点在停车时倒退进回收箱里。
idiom

Band together

为了共同的目标而团结起来。
Meaning
To unite for a common purpose.
Example
The workers **banded together** to demand better wages.
工人们团结起来要求更高的工资。
idiom

Best foot forward

努力给人留下最好的印象
Meaning
To try to make the best possible impression
Example
She always puts her **best foot forward** on important occasions.
她总是在重要场合尽力表现自己最好的一面。
idiom

between a rock and a hard place

面临两个困难的选择
Meaning
facing two difficult choices
Example
She’s **between a rock and a hard place** — neither option is good.
她处于两难境地——没有哪个选项是好的。
idiom

black box

一个工作原理不被理解或不透明的系统或过程
Meaning
a system or process whose workings are not understood or transparent
Example
The neural network is often described as a **black box** because its decision-making process is not fully transparent.
神经网络通常被描述为一个**黑盒**，因为其决策过程并不完全透明。
idiom

blow someone's cover

揭露某人的秘密身份或隐藏目的
Meaning
to reveal someone's secret identity or hidden purpose
Example
The journalist accidentally **blew the cover** of the undercover agent.
记者不小心揭露了卧底特工的身份。
idiom

breach of security

违反或未能遵守安全协议
Meaning
a violation or failure to adhere to security protocols
Example
The company faced a significant **breach of security** last year.
公司去年面临了一个重大的安全漏洞。