backroom deal
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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

burning desire

强烈的实现某事的动力
Meaning
a strong motivation to achieve something
Example
He has a **burning desire** to succeed in life.
他有一个**强烈的愿望**在生活中取得成功。
idiom

burst into tears

突然开始哭泣
Meaning
to suddenly start crying
Example
She **burst into tears** after hearing the bad news.
她听到坏消息后**突然哭了起来**。
idiom

black hole

一种事物消失或丧失而没有解释的情况
Meaning
a situation where things disappear or are lost without explanation
Example
All the research data went into a **black hole** after the server crash.
所有研究数据在服务器崩溃后进入了一个**黑洞**。
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

born in the purple

出生于富裕或皇室家庭
Meaning
born into a wealthy or royal family
Example
He was **born in the purple**, so wealth was never an issue.
他出生于皇室家庭，因此财富从未是问题。
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

beyond the rainbow

期望一些美丽或梦幻的事情
Meaning
to hope for something wonderful or dreamlike
Example
She believes her dreams lie **beyond the rainbow**.
她相信她的梦想在彩虹的另一边。
idiom

butter someone up

讨好某人以获得好处
Meaning
to flatter someone to gain favor
Example
He’s trying to **butter up** the boss for a promotion.
他正试图讨好老板以获得晋升。
idiom

better safe than sorry

谨慎总比冒险后悔要明智。
Meaning
It’s wiser to be cautious than to take risks and regret later.
Example
I always double-check the locks — **better safe than sorry**.
我总是仔细检查锁 — 谨慎总比事后后悔好。
idiom

balance of power

各国之间的权力分配，以防止任何一个国家变得过于强大
Meaning
the distribution of power between nations to prevent any one nation from becoming too powerful
Example
The United Nations aims to maintain the **balance of power** among its member states.
联合国旨在维持其成员国之间的**力量平衡**。
idiom

break your back

为了实现某事而非常努力地工作
Meaning
to work very hard to achieve something
Example
He’s been **breaking his back** to support his family.
他一直在**拼命工作**来养家。
idiom

blue chip

一个历史悠久且财务稳健的公司
Meaning
a well-established and financially sound company
Example
He prefers to invest in **blue chip** stocks for stability.
他更喜欢投资**蓝筹**股票以获得稳定性。
idiom

bite the byte

应对困难的技术挑战
Meaning
to deal with a difficult technological challenge
Example
Developers had to **bite the byte** to fix the software issue.
开发人员必须 **bite the byte** 来修复软件问题。
idiom

bounce back from

在挫折后迅速恢复
Meaning
to recover quickly after a setback
Example
The team needs to **bounce back from** last week's loss.
队伍需要从上周的失利中迅速恢复。
idiom

Bring peace to

在某种情况下恢复平静或安宁。
Meaning
To restore calm or tranquility in a situation.
Example
Her kind words helped **bring peace to** the argument.
她的好话帮助**带来了平和**的争论。
idiom

burn your fingers

因不好的决定或错误而遭受痛苦
Meaning
to suffer because of a bad decision or mistake
Example
He **burned his fingers** by trusting the wrong person.
他因为信错了人，**烧了自己的手指**。
idiom

bull market

股票价格上涨的时期
Meaning
a period when prices of stocks are rising
Example
Investors are optimistic during a **bull market**.
投资者在**牛市**期间持乐观态度。
idiom

brush up on

提高某人的技能或知识
Meaning
to improve one’s skill or knowledge
Example
She decided to **brush up on** her painting techniques.
她决定提高她的绘画技巧。
idiom

behind enemy lines

处于敌对或危险的情况中
Meaning
in a hostile or dangerous situation
Example
Journalists were working **behind enemy lines** to report the truth.
记者们在敌人的防线后工作，以报道真相。
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

bare your soul

诚实地分享你最深的感受或秘密
Meaning
to share your deepest feelings or secrets honestly
Example
She **bared her soul** to her best friend.
她 **向她最好的朋友敞开了心扉**。
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

black box thinking

黑箱思维：通过研究输入和输出分析未知的过程
Meaning
analyzing unknown processes by studying their inputs and outputs
Example
In AI research, **black box thinking** helps improve transparency.
在AI研究中，**黑箱思维**有助于提高透明度。
idiom

big mouth

一个说太多话或泄露秘密的人
Meaning
someone who talks too much or reveals secrets
Example
Don’t tell him anything — he’s got a **big mouth**.
别告诉他任何事情 — 他有一个**大嘴巴**。
idiom

be in the driver’s seat

控制局势
Meaning
to be in control of a situation
Example
After the merger, our company is **in the driver’s seat**.
合并后，我们公司处于**驾驶员座位**。
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

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

beat around the bush

避免谈论主要话题
Meaning
to avoid talking about the main topic
Example
Stop **beating around the bush** and tell me what happened.
不要绕圈子，告诉我发生了什么。
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

bring forward

将某物移至较早的时间
Meaning
to move something to an earlier time
Example
We had to **bring forward** the meeting due to travel.
由于旅行，我们不得不提前会议。
idiom

blow away the cobwebs

在不活跃后让身心焕然一新
Meaning
to refresh one’s mind or body after inactivity
Example
A short walk helped me **blow away the cobwebs**.
一次短暂的散步帮助我**焕然一新**。
idiom

break the deadlock

打破僵局或脱离无法进展的局面
Meaning
to end a situation in which progress is not possible
Example
They finally managed to **break the deadlock** through discussion.
他们最终通过讨论打破了僵局。
idiom

bring up

抚养或照顾一个孩子直到成年
Meaning
to raise or care for a child until adulthood
Example
She was **brought up** by her grandparents.
她是由她的祖父母抚养长大的。
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

bang for your buck

花费的每一分钱的价值；一个好交易
Meaning
value for the money spent; a good deal
Example
This insurance plan gives you the best **bang for your buck**.
这个保险计划给你最划算的选择。
idiom

by trial and error

通过实验和纠正错误来学习
Meaning
learning by experimenting and correcting mistakes
Example
We developed the best method **by trial and error**.
我们通过 **试验和错误** 开发了最好的方法。
idiom

butterflies in the stomach

感到紧张或兴奋
Meaning
feeling nervous or excited
Example
I always get **butterflies in my stomach** before a date.
约会前我总是感到紧张。
idiom

back each other up

互相支持与帮助
Meaning
to support and help one another
Example
In a good team, members always **back each other up**.
在一个好的团队中，成员们总是互相支持。
idiom

be your own biggest fan

欣赏并相信自己
Meaning
to appreciate and believe in yourself
Example
You should **be your own biggest fan** to stay motivated.
你应该成为自己最大的粉丝，以保持动力。
idiom

blow hot and cold

不断改变你的态度或情绪
Meaning
to keep changing your attitude or mood
Example
He’s **blowing hot and cold** about the new project.
他对这个新项目态度不断变化。
idiom

bag of bones

一个非常瘦的人
Meaning
a very thin person
Example
After his illness, he turned into a **bag of bones**.
生病后，他变成了一个瘦骨如柴的人。
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

break the fourth wall

在戏剧或电影中直接与观众对话
Meaning
to address the audience directly in a play or film
Example
The actor **broke the fourth wall** to make the scene funnier.
演员**打破了第四面墙**，让这场戏更有趣。
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

brainstorm ideas

思考新的和创造性的想法
Meaning
to think of new and creative ideas
Example
The class gathered to **brainstorm ideas** for the science project.
班级聚集在一起为科学项目生成创意。
idiom

bored to death

极度无聊
Meaning
extremely bored
Example
I was **bored to death** during the long lecture.
我在长时间的讲座中感到极度无聊。
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

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

bury your head in the sand

忽略问题，指望它自己解决
Meaning
to ignore a problem hoping it will go away
Example
We can’t **bury our heads in the sand** about climate change any longer.
我们不能再对气候变化**把头埋在沙里**了
idiom

bail on

突然抛弃某人或某事
Meaning
to abandon someone or something suddenly
Example
He wouldn’t **bail on** his friends at the last minute.
他不会在最后一刻抛弃他的朋友。
idiom

break even

收入与支出相等，既无利润也无损失
Meaning
to have equal income and expenses, neither profit nor loss
Example
The company finally **broke even** after three years.
公司终于在三年后**持平**。
idiom

break into

成功进入一个新领域或职业
Meaning
to enter a new field or profession successfully
Example
She managed to **break into** the film industry last year.
她去年成功进入了电影行业。
idiom

bottom out

达到最低点然后改善
Meaning
to reach the lowest point before improving
Example
Experts believe the market has **bottomed out**.
专家认为市场已经触底。
idiom

Batten down the hatches

为困难或危险的情况做好准备。
Meaning
To prepare for a difficult or dangerous situation.
Example
We’d better **batten down the hatches**; a storm is coming.
我们最好做好准备；风暴来了。
idiom

Break with tradition

做事与通常方式不同
Meaning
To do something in a different way from what is usually done
Example
The couple decided to **break with tradition** and have a small wedding on the beach.
这对情侣决定打破传统，在海滩举行小型婚礼。
idiom

black sheep

被认为是团体或家庭耻辱的人
Meaning
a person who is considered a disgrace to a group or family
Example
He is the **black sheep** of the family.
他是家里的**黑羊**。
idiom

butterflies in your stomach

感到紧张或心理不安
Meaning
feeling nervous or anxious
Example
I always get **butterflies in my stomach** before a big presentation.
我在大场合前总是感到紧张。
idiom

bite someone’s head off

无缘无故地生气对待某人
Meaning
to speak angrily to someone without reason
Example
I just asked a question, no need to **bite my head off**!
我只是问了一个问题，没必要**对我发火**!
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

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

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

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

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

behind someone’s back

在他们不知道的情况下做某事
Meaning
to do something secretly without their knowledge
Example
She was talking about me **behind my back**.
她在**我背后**说我的坏话。
idiom

build castles in the air

做不切实际的计划或梦想
Meaning
to make unrealistic plans or dreams
Example
He’s always **building castles in the air** instead of acting.
他总是在做空想而不行动。
idiom

be responsible for

对某事负责
Meaning
to be in charge of or accountable for something
Example
She is **responsible for** managing the entire department.
她**负责**管理整个部门。
idiom

bear market

股价下跌的时期
Meaning
a period when stock prices are falling
Example
Many people lose money during a **bear market**.
很多人在**熊市**期间亏钱。
idiom

behind bars

在监狱里
Meaning
in prison
Example
The murderer will spend the rest of his life **behind bars**.
谋杀犯将余生都在监狱里度过。
idiom

burn your bridges

做出无法撤销的决定
Meaning
to make a decision that cannot be reversed
Example
Be careful not to **burn your bridges** with your old employer.
小心不要和你的旧雇主**烧掉你的桥梁**。
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

break the ice

在尴尬的情况下开始友好的对话
Meaning
to start a friendly conversation in an awkward situation
Example
To **break the ice**, I told a funny story.
为了**打破僵局**，我讲了一个有趣的故事。
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

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

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

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

black and white

明确界定；没有混淆或模糊
Meaning
clearly defined; without confusion or ambiguity
Example
The contract terms are **black and white**.
合同条款非常清晰。
idiom

breeze through

轻松地做某事，几乎不费力气
Meaning
to do something easily and with little effort
Example
She managed to **breeze through** the exam without any problems.
她轻松地通过了考试，没有遇到任何问题。
idiom

boil down to

归结为某个主要原因或要点
Meaning
to have something as the main point or reason
Example
The argument **boiled down to** a simple misunderstanding.
争论**归结为**一个简单的误会。
idiom

Burst with gratitude

感到极其感激。
Meaning
To feel extremely thankful.
Example
She was **bursting with gratitude** after receiving help.
她在收到帮助后，**充满了感激之情**。
idiom

block out

忽略干扰或不愉快的想法
Meaning
to ignore distractions or unpleasant thoughts
Example
She tried to **block out** the noise and continue working.
她试图**阻挡**噪音并继续工作。
idiom

blow out of the water

完全惊讶或击败
Meaning
to surprise or defeat completely
Example
Their performance **blew us out of the water**.
他们的表现**完全让我们吃惊**。
idiom

burning ambition

强烈的实现某事的愿望
Meaning
a very strong desire to achieve something
Example
He had a **burning ambition** to become a successful entrepreneur.
他有一个**强烈的愿望**要成为一名成功的企业家。
idiom

breaking the deadlock

结束没有进展的情况
Meaning
to end a situation where no progress is being made
Example
The negotiation team succeeded in **breaking the deadlock**.
谈判团队成功地**打破僵局**。
idiom

break the silence

在一段沉默之后开始说话
Meaning
to start talking after a period of silence
Example
He was the one to **break the silence** after the awkward pause.
尴尬的沉默之后，他是那个**打破沉默**的人。
idiom

beam me up

快速离开一个地方或逃避一个令人不愉快的情境
Meaning
to leave a place quickly or escape an unpleasant situation
Example
This meeting is so boring—someone please **beam me up**!
这个会议太无聊了—有人请**beam me up**!
idiom

better luck next time

用来鼓励失败的人
Meaning
used to encourage someone who has failed
Example
**Better luck next time**! You almost won.
下次好运！你差点赢了。
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

big brother

一个哥哥或一个表现得具有保护性的人
Meaning
an older brother or someone who behaves protectively
Example
Mark acts like a **big brother** to everyone in the neighborhood.
马克对邻里里的每个人都像**大哥哥**一样。
idiom

big thanks

一种非正式的说谢谢的方式
Meaning
an informal way to say thank you very much
Example
**Big thanks** to everyone who supported the project.
非常感谢所有支持该项目的人。
idiom

bury the hatchet

停止争斗并重新成为朋友
Meaning
to stop fighting and become friends again
Example
After years of argument, they decided to **bury the hatchet**.
经过多年的争执，他们决定**和解**。
idiom

bear the responsibility

承担某事的责任
Meaning
to take on the duty of something
Example
She was willing to **bear the responsibility** for the new project.
她愿意为这个新项目承担责任。
idiom

book someone

正式指控某人犯罪
Meaning
to officially charge someone with a crime
Example
The police **booked** him for theft.
警察因盗窃指控了他。
idiom

break the chains

摆脱限制或约束
Meaning
to free oneself from restrictions or limitations
Example
She wanted to **break the chains** of social expectations.
她想**打破社会期望的束缚**。
idiom

break the law

犯下非法行为
Meaning
to commit an illegal act
Example
Anyone who **breaks the law** should be punished.
任何**违法的人**都应该受到惩罚。
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

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

burst out laughing

突然大笑
Meaning
to suddenly start laughing loudly
Example
Everyone **burst out laughing** at his joke.
每个人听了他的笑话都**爆笑起来**。
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

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

burning the midnight oil

熬夜工作
Meaning
working late into the night
Example
She’s been **burning the midnight oil** to finish the report.
她为了完成报告，一直在熬夜工作。
idiom

beyond a reasonable doubt

毫无合理怀疑；完全确定
Meaning
without any logical reason to doubt; with full certainty
Example
The evidence proved his guilt **beyond a reasonable doubt**.
证据证明了他的罪行毫无合理怀疑。
idiom

be at your wits' end

担心或烦恼到不知道该怎么办
Meaning
to be so worried or upset that you don't know what to do
Example
I'm **at my wits' end** trying to calm the kids down.
我在尽力平静孩子们时已经精疲力尽。
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

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

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

bring down

让某人感到难过或减少某物
Meaning
to make someone feel sad or to reduce something
Example
Don’t let one rude comment **bring down** your confidence.
不要让一个粗鲁的评论 **降低** 你的自信。
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 and forth

反复改变意见或决策
Meaning
to change opinions or decisions repeatedly
Example
We’ve been going **back and forth** about this issue for weeks.
我们已经就这个问题讨论了几个星期。
idiom

build from the ground up

从头开始做某事
Meaning
to start something from the very beginning
Example
They **built their business from the ground up** with no investors.
他们**从头开始建立了他们的生意**，没有投资者。
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

blast off

以极大的能量或热情开始
Meaning
to take off or start with great energy or enthusiasm
Example
The project is ready to **blast off** next week.
该项目准备在下周启动。
idiom

brute force attack

一种通过尝试所有可能的密码组合直到找到正确密码的黑客方法
Meaning
a method of hacking that tries all possible combinations of passwords until the correct one is found
Example
The attacker launched a **brute force attack** on the system’s login page.
攻击者对系统的登录页面发起了**暴力破解攻击**。
idiom

back off

离开或停止给某人压力
Meaning
to move away or stop pressuring someone
Example
Let’s **back off** and give them space to decide.
让我们**退一步**，给他们一些决定的空间。
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

bust someone

逮捕或抓住某人做非法的事情
Meaning
to arrest or catch someone doing something illegal
Example
The officer was able to **bust someone** for selling drugs.
警察成功地逮捕了一个卖毒品的人。
idiom

bubbling with joy

非常开心和兴奋
Meaning
very happy and excited
Example
The children were **bubbling with joy** after receiving their gifts.
孩子们在收到礼物后非常开心和兴奋。
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

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

behind the firewall

受到保护或与外部威胁隔离
Meaning
protected or isolated from external threats
Example
Sensitive company data should always stay **behind the firewall**.
敏感的公司数据应该始终保持在**防火墙后面**。
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。