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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

backpropagation

一种用于神经网络的学习算法，通过调整网络中的权重来最小化错误
Meaning
a learning algorithm used in neural networks to minimize error by adjusting weights through the network
Example
The **backpropagation** algorithm helps in optimizing the neural network's performance.
反向传播算法有助于优化神经网络的性能。
idiom

beyond a shadow of a doubt

毫无疑问；完全确定
Meaning
without any doubt; completely certain
Example
He is **beyond a shadow of a doubt** the best candidate for the job.
他**毫无疑问**是这个工作的最佳候选人。
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

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

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

bounce rate

在只查看一个页面后离开网站的访客百分比
Meaning
the percentage of visitors who leave a website after viewing only one page
Example
We need to lower our **bounce rate** to keep visitors engaged.
我们需要降低我们的 **跳出率** 以保持访客的参与。
idiom

burned out

因过度工作而完全疲惫
Meaning
completely exhausted or tired due to overwork
Example
After months of overtime, she felt **burned out**.
经过几个月的加班后，她感到筋疲力尽。
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

birds of a feather flock together

有相似兴趣或性格的人往往会成为朋友。
Meaning
People who have similar interests or personalities tend to be friends.
Example
John and Mike are always together; well, **birds of a feather flock together**.
约翰和迈克总是在一起；俗话说，物以类聚，人以群分。
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

breathe in

深呼吸
Meaning
to inhale air deeply
Example
Take a moment to **breathe in** before you speak.
在说话之前，花一刻钟深呼吸。
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

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

Barking up the wrong tree

采取错误或被误导的行动方向。
Meaning
To pursue a mistaken or misguided course of action.
Example
If you think I'm guilty, you're **barking up the wrong tree**.
如果你认为我有罪，那你就找错对象了。
idiom

by the way

用于引入新话题或添加额外信息
Meaning
used to introduce a new topic or add extra information
Example
**By the way**, did you finish your project?
**顺便说一句**, 你完成你的项目了吗？
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 into a market

成功进入一个新的市场或行业
Meaning
to successfully enter a new market or industry
Example
The company is trying to **break into the Asian market**.
公司正在尝试进入亚洲市场。
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

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

break the problem down

将复杂的问题分解成较小、更易管理的部分
Meaning
to divide a complex problem into smaller, more manageable parts
Example
Let's **break the problem down** into smaller steps.
让我们把问题分解成较小的步骤
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

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

big picture

整体观点或情况
Meaning
the overall perspective or situation
Example
Producers always try to see the **big picture** before making changes.
制片人总是在做出改变之前试图看到整体情况。
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

burst of inspiration

突如其来的创造力或动力的感觉
Meaning
a sudden feeling of creativity or motivation
Example
He wrote the poem in a **burst of inspiration**.
他在一阵**灵感的冲动**中写了这首诗。
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

bright future ahead

拥有积极的前景或可能性
Meaning
having positive prospects or possibilities
Example
With your hard work, you have a **bright future ahead**.
通过你的努力工作，你拥有一个 **光明的未来**。
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

by the book

严格按照规则行事
Meaning
to follow the rules exactly
Example
Our manager does everything **by the book**.
我们的经理做一切都**按规矩**。
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

Burn the bridges

摧毁返回先前情况的可能性
Meaning
to destroy the possibility of returning to a previous situation
Example
Once he left the company, he decided to **burn the bridges** and not look back.
一旦他离开了公司，他决定 **burn the bridges** 并且不回头看。
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

Breaking news

新鲜且重要的信息正在立即报道
Meaning
New and important information being reported immediately
Example
We have **breaking news** about the election results.
我们有关于选举结果的**突发新闻**。
idiom

battle-tested

通过经验或困难证明有效
Meaning
proven effective through experience or hardship
Example
She’s a **battle-tested** leader who knows how to stay calm under pressure.
她是一位有经验的领导者，知道如何在压力下保持冷静。
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

brainstorm

在小组讨论中生成许多创意想法
Meaning
to generate many creative ideas in a group discussion
Example
Let’s **brainstorm** some ideas for our next campaign.
让我们为我们的下一个活动产生一些想法。
idiom

black and blue

淤伤; 有伤口的痕迹
Meaning
bruised; having marks from injury
Example
He was **black and blue** after falling off his bike.
他摔下自行车后淤伤了。
idiom

button up

完成准备工作或安全地关闭某物
Meaning
to finish preparations or close something securely
Example
Let’s **button up** the proposal by Friday.
让我们在周五前**button up**提案。
idiom

blue chip company

一家大型、可靠且财务稳定的公司
Meaning
a large, reliable, and financially stable company
Example
Investors prefer to put their money into **blue chip companies**.
投资者更愿意将资金投入到**蓝筹公司**。
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

bear in mind

记住或考虑某事
Meaning
to remember or consider something
Example
**Bear in mind** that traffic will be heavy at that time.
请记住，那时交通会很拥挤。
idiom

breathe easy

在压力大或危险的情况下放松
Meaning
to relax after a stressful or dangerous situation
Example
After the pollution control laws were enforced, people could finally **breathe easy**.
在污染控制法案实施后，人们终于能够**松口气**。
idiom

beat oneself up

对某事过分自责
Meaning
to blame yourself too much for something
Example
Don’t **beat yourself up** over one mistake.
不要因为一个错误而**过分责备自己**。
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

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

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

Boom and bust

一段大繁荣之后紧跟着急剧下降的时期。
Meaning
A period of great prosperity followed by a sharp decline.
Example
The real estate market often experiences **boom and bust** cycles.
房地产市场经常经历**繁荣与萧条**的周期。
idiom

blossom into something

随着时间的推移发展或变得成功
Meaning
to develop or become successful over time
Example
She **blossomed into** a confident and skilled leader.
她变成了一个自信且熟练的领导者。
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 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

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

beyond belief

太令人惊讶或震惊，以至于无法相信
Meaning
too surprising or shocking to believe
Example
His recovery was **beyond belief**.
他的康复令人难以置信。
idiom

be on duty

在某个时间值班或负责某事
Meaning
to be working or responsible for something at a certain time
Example
The guard was **on duty** all night.
警卫整晚都在值班。
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

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

build up your confidence

逐渐变得更加自信
Meaning
to gradually become more confident
Example
Public speaking can help you **build up your confidence**.
公众演讲可以帮助你增强信心。
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

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

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

beta test

在正式发布之前测试产品
Meaning
to test a product before official release
Example
We are going to **beta test** our app next week.
我们将在下周进行我们的应用程序测试。
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

Baptism of fire

一个人在新工作或角色中的第一次困难经历。
Meaning
A person’s first difficult experience in a new job or role.
Example
Her first week as manager was a real **baptism of fire**.
她作为经理的第一周是一个真正的**火的洗礼**。
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

be on edge

感到紧张，焦虑或容易被激怒
Meaning
to be nervous, tense, or easily upset
Example
She’s been **on edge** all day waiting for the results.
她整天都在**焦虑**地等待结果。
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

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

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

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

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

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

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

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

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

back away from

从某个情境中撤退或退出
Meaning
to retreat or withdraw from a situation
Example
He chose to **back away from** the argument before it escalated.
他选择在争论升级之前**退出**。
idiom

burn out

由于过度工作而变得非常疲劳并失去动力
Meaning
to become very tired and lose motivation due to overwork
Example
If you don’t rest, you’ll **burn out** soon.
如果你不休息，你很快就会**精疲力尽**。
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

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

Big fish in a small pond

在一个小的组织或区域中是一个重要的人。
Meaning
An important person in a small organization or area.
Example
He prefers being a **big fish in a small pond** rather than competing globally.
他宁愿在一个小池塘里做一条大鱼，也不想在全球范围内竞争。
idiom

blow one’s own trumpet

自夸; 吹嘘自己的成就
Meaning
to praise oneself; to boast about one's achievements
Example
He loves to **blow his own trumpet** whenever he achieves something.
每当他取得某些成就时，他都喜欢**自夸**。
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

bend the truth

稍微改变事实，使某事听起来更好
Meaning
to slightly change the truth to make something sound better
Example
He tends to **bend the truth** when telling stories.
他在讲故事时常常**bend the truth**。
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

by the skin of your teeth

勉强完成某事
Meaning
to just barely manage to do something
Example
He passed the exam **by the skin of his teeth**.
他勉强通过了考试。
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

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

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

blind date

两个从未见过面的人之间的浪漫约会
Meaning
a romantic meeting between two people who have never met before
Example
She met her boyfriend on a **blind date**.
她是在一次相亲中遇到她的男朋友的。
idiom

beat the clock

在截止日期前完成某事
Meaning
to finish something before the deadline
Example
We managed to **beat the clock** and submit the report early.
我们成功地**赶在最后期限前**提交了报告。
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

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

bend over backwards

付出巨大努力帮助或取悦某人
Meaning
to make a great effort to help or please someone
Example
She **bent over backwards** to make the event successful.
她竭尽全力使活动成功。
idiom

beyond the pale

超出可接受的规则或标准
Meaning
outside acceptable rules or standards
Example
His behavior was **beyond the pale**.
他的行为超出了可接受的范围。
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

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

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

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

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

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

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

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

brighten up your day

使某人感到更快乐
Meaning
to make someone feel happier
Example
Her smile can **brighten up your day** instantly.
她的微笑能瞬间**让你的一天更美好**。
idiom

blind experiment

一种不让参与者知道某些信息以避免偏见的测试
Meaning
a test conducted without participants knowing certain information to prevent bias
Example
The scientists conducted a **blind experiment** to ensure accuracy.
科学家们进行了一项**盲实验**以确保准确性。
idiom

bent over backwards

非常努力地帮助或取悦某人
Meaning
to try very hard to help or please someone
Example
She **bent over backwards** to make sure everyone was happy.
她**弯腰后仰**确保每个人都很高兴。
idiom

break the glass ceiling

克服障碍或限制，尤其是在职业或个人进步方面
Meaning
to overcome a barrier or limitation, particularly in career or personal advancement
Example
She was the first woman in the company to **break the glass ceiling** and become a senior manager.
她是公司中第一个**打破玻璃天花板**并成为高级经理的女性。
idiom

batten down

在准备应对问题时牢固地固定某物
Meaning
to secure something tightly in preparation for trouble
Example
Residents will **batten down** their windows before the storm.
居民们将在风暴前**bàitèn dàoūn**他们的窗户。
idiom

bloom where you’re planted

充分利用你当前的处境
Meaning
make the best of your current situation
Example
Even in tough times, she **blooms where she’s planted**.
即使在困难时期，她也在自己的位置上绽放。
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

burn bridges

彻底断绝关系或联系
Meaning
to destroy relationships or connections permanently
Example
Be careful not to **burn bridges** when leaving your job.
离职时要小心，不要**断绝关系**。
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

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

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

Born with a silver spoon in one's mouth

出生在富裕家庭。
Meaning
To be born into a wealthy family.
Example
He never had to struggle; he was **born with a silver spoon in his mouth**.
他从未需要奋斗；他出生在富裕家庭。
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

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

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

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

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

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

blur the lines

使两者之间的区别变得不那么清晰
Meaning
to make the difference between two things less clear or distinct
Example
AI-generated art often **blurs the lines** between human creativity and machine output.
人工智能生成的艺术常常**模糊了**人类创造力与机器输出之间的界限。
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**。