rein in
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idiom

rein in

控制或限制某事
Meaning
to control or limit something
Example
We must **rein in** our spending this quarter.
我们必须在这个季度控制我们的支出。
idiom

on good terms with

与某人保持友好和积极的关系
Meaning
having a friendly and positive relationship with someone
Example
She’s **on good terms with** her ex-husband for the kids’ sake.
她为了孩子和前夫保持着良好的关系。
idiom

garbage in, garbage out

错误的输入数据将产生错误的结果
Meaning
flawed input data will produce flawed results
Example
If the training data is poor, the AI model will fail — **garbage in, garbage out**.
如果训练数据不佳，人工智能模型将失败——**garbage in, garbage out**。
idiom

Catwalk queen

一个非常自信又时尚的女人，就像模特一样
Meaning
A woman who is very confident and stylish, like a model
Example
She walked into the room like a **catwalk queen**.
她走进房间，像一个T台女王。
idiom

make yourself clear

以便他人容易理解你表达的意思
Meaning
to express yourself so that others understand you easily
Example
Could you **make yourself clear**, please?
您能**说清楚一点**吗？
idiom

put on the map

使某物或某人出名或知名
Meaning
to make something or someone famous or well-known
Example
The viral campaign **put the brand on the map**.
病毒活动使该品牌出名。
idiom

go ballistic

变得极度愤怒或激动
Meaning
to become extremely angry or excited
Example
Dad **went ballistic** when he found out I dented his car.
爸爸发现我把他的车撞凹了后，**暴怒了**。
idiom

practice what you preach

按照你给别人的建议行事
Meaning
to act according to the advice you give to others
Example
If you want others to be kind, you need to **practice what you preach**.
如果你想让别人友善，你需要实践你所宣扬的。
idiom

run with it

接受一个想法并进一步发展它或基于它采取行动
Meaning
to take an idea and develop it further or act on it
Example
They liked the concept and told us to **run with it**.
他们喜欢这个概念并告诉我们要**run with it**。
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

steal the spotlight

吸引所有的注意力，往往夺走别人的风头
Meaning
to get all the attention, often taking it away from someone else
Example
The little girl **stole the spotlight** at the wedding with her adorable dance.
那个小女孩在婚礼上以她可爱的舞蹈**抢尽了风头**。
idiom

own up

承认或坦白某事
Meaning
to admit or confess to something.
Example
He finally **owned up** to breaking the vase.
他终于**承认**打破了花瓶。
idiom

to nurse someone back to health

帮助某人从疾病中恢复
Meaning
to help someone recover from illness
Example
She **nursed her mother back to health** after the accident.
事故后，她帮助母亲恢复了健康。
idiom

carry the can

接受责任或指责，通常是不公平的。
Meaning
to accept responsibility or blame, often unfairly.
Example
She was left to **carry the can** after her manager left.
经理离开后，她不得不 **承担责任**。
idiom

to hit the jackpot

取得巨大成功或赚很多钱
Meaning
to achieve great success or gain a lot of money
Example
After years of hard work, she finally **hit the jackpot** with her startup.
经过多年的努力工作，她最终通过她的创业公司中了大奖。
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

a glimmer of hope

在困难的情况下改善或成功的微小迹象
Meaning
a small sign of improvement or success in a difficult situation
Example
Even in the hardest times, he never gave up because there was always **a glimmer of hope**.
即使在最艰难的时期，他也从未放弃，因为总有**一线希望**。
idiom

nail down

使某事确定或明确
Meaning
to make something definite or certain
Example
We need to **nail down** the details before signing the contract.
在签合同之前，我们需要确定细节。
idiom

That’s exactly right

用来表示完全同意某个说法
Meaning
Used to completely agree with a statement
Example
**That’s exactly right**, we should focus on quality first.
没错，我们应该首先关注质量。
idiom

have a high opinion of yourself

认为自己非常好或重要
Meaning
to think you are very good or important
Example
He **has a high opinion of himself** after getting the award.
他在获得奖项后对自己有很高的评价。
idiom

head out

离开前往目的地
Meaning
to leave for a destination
Example
Let’s **head out** before the traffic gets heavy.
让我们**离开**，趁交通还不繁忙。
idiom

throw the book at someone

严厉惩罚某人
Meaning
to punish someone severely
Example
The judge decided to **throw the book at** the criminal.
法官决定对犯人**施以严惩**。
idiom

to be of one mind

持有相同的意见
Meaning
to have the same opinion
Example
We are **of one mind** about this decision.
我们对这个决定**意见一致**。
idiom

Stand your ground

尽管面临反对，仍坚持自己的信念或决定
Meaning
to remain firm in your beliefs or decisions despite opposition
Example
Even though they disagreed, he decided to **stand his ground** and not back down.
尽管他们不同意，他决定 **站稳脚跟**，不退缩。
idiom

keep the peace

维持秩序并避免冲突
Meaning
to maintain order and avoid conflict
Example
The police were called to **keep the peace** during the protest.
警方被叫来在抗议期间维持和平。
idiom

burn one’s fingers

因为自己的错误而受苦
Meaning
to suffer because of one’s own mistake
Example
He **burned his fingers** by investing in a risky business.
他因为投资于一个冒险的生意而受到了损失。
idiom

have stars in one’s eyes

对未来充满兴奋和梦想
Meaning
to be full of excitement and dreams about the future
Example
Young artists **have stars in their eyes** when they start their careers.
年轻的艺术家在开始他们的职业生涯时充满梦想。
idiom

have a lump in your throat

因强烈情感而感到像是快要哭出来的感觉
Meaning
to feel like you are about to cry because of strong emotions
Example
I had **a lump in my throat** when I said goodbye.
当我说再见时，我感到喉咙有块硬块。
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

do the right thing by someone

公正和尊重地对待某人
Meaning
to treat someone fairly and with respect
Example
It's important to always **do the right thing by your colleagues**.
总是**为同事做正确的事**非常重要。
idiom

sing from the same hymn sheet

与他人表达相同的意见，特别是公开地
Meaning
to express the same opinion as others, especially publicly
Example
All the managers are **singing from the same hymn sheet** on this issue.
所有经理在这个问题上都在**唱同一首歌**。
idiom

lose your nerve

失去做某事的勇气
Meaning
to become too frightened to do something
Example
I was going to ask her out, but I **lost my nerve**.
我本打算约她出去，但我失去了勇气。
idiom

strike a balance

在两件事之间找到令人满意的折中
Meaning
to find a satisfactory compromise between two things
Example
It’s hard to **strike a balance** between career and family.
在职业和家庭之间找到平衡是很难的。
idiom

pan out

结果很好或产生了好的结果
Meaning
to turn out well or produce a good result
Example
Luckily, our backup plan **panned out**.
幸运的是，我们的备用计划成功了。
idiom

make ends meet

赚取足够的钱以维持生活
Meaning
to earn enough money to live on
Example
He works two jobs to **make ends meet**.
他做两份工作以维持生计。
idiom

twist someone's ear

通过坚持不懈地说服某人做某事
Meaning
to persuade someone to do something by being persistent
Example
I had to **twist someone's ear** to get him to help me move.
我不得不**拧某人的耳朵**让他帮我搬家。
idiom

extend an olive branch

提供和平或和解
Meaning
to offer peace or reconciliation
Example
After years of conflict, the president decided to **extend an olive branch**.
经过多年的冲突，总统决定伸出橄榄枝。
idiom

AI accountability

开发者和组织的责任是确保人工智能系统公平、安全和道德地运作。
Meaning
the responsibility of developers and organizations to ensure AI systems act fairly, safely, and ethically.
Example
Ensuring **AI accountability** is essential to avoid harmful consequences in society.
确保**AI 责任**对于避免社会中有害的后果至关重要。
idiom

take the fall

为某事承担责任，通常是为了保护他人。
Meaning
to accept blame for something, often to protect others.
Example
He agreed to **take the fall** for the team’s mistake.
他同意为团队的错误**承担责任**。
idiom

Fine tuning

为了改进而进行的小调整
Meaning
small adjustments to improve something
Example
The plan just needs some **fine tuning** before we present it.
在我们展示之前，这个计划只需要一些小调整。
idiom

work one’s fingers to the bone

非常努力地工作
Meaning
to work extremely hard
Example
He **worked his fingers to the bone** to build his business.
他为建立自己的事业拼命工作。
idiom

Time heals all wounds

情感上的痛苦随着时间会减轻。
Meaning
Emotional pain will lessen with time.
Example
Don’t worry, time heals all wounds.
别担心，时间会治愈所有的伤口。
idiom

it takes two to tango

在某种情况下，参与的人都有同等的责任
Meaning
both people involved in a situation are equally responsible
Example
You can't blame only him for the argument - **it takes two to tango**.
你不能只怪他争论 - **跳探戈需要两个人**。
idiom

fake news

作为新闻呈现的虚假或误导信息
Meaning
false or misleading information presented as news
Example
Be careful not to believe in **fake news** spread on social media.
小心不要相信社交媒体上传播的**假新闻**。
idiom

lock in

确保某事无法更改
Meaning
to secure something so it cannot change
Example
Let's **lock in** the reservation before the price goes up.
我们在价格上涨前把预定锁定。
idiom

follow through on

完成一项任务或承诺，如计划所示
Meaning
to complete a task or promise as planned
Example
She always **follows through on** what she says she will do.
她总是**履行**她说她会做的事。
idiom

A political animal

一个非常感兴趣并且有才华的人
Meaning
A person who is very interested in politics and has a talent for it
Example
He’s known to be a real **political animal**.
他以一个真正的**政治动物**而闻名。
idiom

Chart a course

计划达成某事的方法。
Meaning
To plan a way to achieve something.
Example
The company has **charted a course** for global expansion.
公司已为全球扩展**制定了计划**。
idiom

fend off

抵御某事或某人
Meaning
to defend against something or someone
Example
They installed lights to **fend off** raccoons in the yard.
他们安装了灯来驱赶院子里的浣熊。
idiom

die of envy

因嫉妒而死
Meaning
to be extremely jealous
Example
He’ll **die of envy** when he sees your new car.
当他看到你的新车时，他会因嫉妒而死。
idiom

a workaholic

一个工作过度且很难停止的人
Meaning
a person who works too much and finds it hard to stop
Example
He’s such **a workaholic**, even on weekends he works.
他是个**工作狂**，即使是周末也在工作。
idiom

miss the boat

错过一个机会
Meaning
to miss an opportunity
Example
If you don’t book early, you’ll **miss the boat**.
如果你不早点预订，你会**错过机会**。
idiom

play on someone's emotions

通过诉诸某人的感情来影响某人
Meaning
to influence someone by appealing to their feelings
Example
The ad tries to **play on people's emotions** to sell products.
广告试图**利用人们的情感**来销售产品。
idiom

keep someone’s word

做你承诺的事情
Meaning
to do what you promise to do
Example
You can trust him; he always **keeps his word**.
你可以信任他；他总是**信守承诺**。
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

tears of joy

因幸福而哭泣
Meaning
crying because of happiness
Example
She shed **tears of joy** when her son returned home.
当她的儿子回家时，她流下了**快乐的眼泪**。
idiom

blank mind

无法清晰思考或记起某事
Meaning
unable to think clearly or remember something
Example
During the exam, my **mind went blank**.
考试时，我的**脑子一片空白**。
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

Plain sailing

轻松且没有困难的事情。
Meaning
Something that is easy and without difficulty.
Example
Once we solved the main issue, the rest was **plain sailing**.
一旦我们解决了主要问题，剩下的就是轻松的。
idiom

Share a smile

微笑并给他人带来快乐
Meaning
to smile and bring happiness to others
Example
It's easy to **share a smile** and brighten someone's day.
很容易**谢尔 啊 斯迈尔**并让某人的一天变得更好。
idiom

Faith can move mountains

坚定的信念可以实现不可能的事情。
Meaning
Strong belief can achieve the impossible.
Example
He believes that **faith can move mountains** when you truly believe.
他相信，当你真正相信时，**信念可以移山**。
idiom

talk down to someone

以高高在上的态度与别人说话，好像他们不聪明
Meaning
to speak to someone as if they are less intelligent
Example
He always **talks down to** his coworkers, which is rude.
他总是以高高在上的态度和同事说话，这很无礼。
idiom

burn rubber

开得非常快
Meaning
to drive very fast
Example
They **burned rubber** as they raced to the hospital.
他们飞快地驶向医院。
idiom

loose cannon

一个无法预测的可能引发问题的人
Meaning
an unpredictable person who may cause problems
Example
He’s a **loose cannon** who often says things without thinking.
他是一个**松散的大炮**，经常在没有思考的情况下说话。
idiom

build from scratch

从头开始做某事
Meaning
to start something from the very beginning
Example
They **built the company from scratch** with no outside funding.
他们从零开始建立公司，没有外部资金。
idiom

take your life in your hands

做一些非常冒险或危险的事。
Meaning
To do something very risky or dangerous.
Example
You’re **taking your life in your hands** by driving in that storm.
你在那场暴风雨中开车就是在拿自己的生命冒险。
idiom

a dead-end job

没有晋升或改善机会的工作
Meaning
a job with no opportunity for advancement or improvement
Example
He quit his **dead-end job** to start his own business.
他辞去了他的**死胡同工作**，开始了自己的生意。
idiom

diplomatic tightrope

需要小心外交的微妙局势
Meaning
a delicate situation requiring careful diplomacy
Example
The president walked a **diplomatic tightrope** between the two rival nations.
总统在两个敌对国家之间走着外交的钢丝。
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

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

in the pipeline

正在计划或开发中
Meaning
being planned or developed
Example
Several new projects are **in the pipeline**.
几个新项目正在进行中。
idiom

a chip off the old block

像父母一样相似的人
Meaning
someone who is very similar to their parent
Example
Your daughter is so smart — she’s **a chip off the old block**.
你的女儿真聪明——她是**老块的一个碎片**。
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

fail at something

做某事失败
Meaning
to not succeed in doing something
Example
He tried to fix the car, but he **failed at something**.
他试图修理汽车，但他在某些事情上失败了。
idiom

to be on cloud nine

极度高兴
Meaning
to be extremely happy
Example
She was **on cloud nine** after hearing the good news about her promotion.
她在听到关于晋升的好消息后，**云端九**了。
idiom

Under the spotlight

接受公众注意或审查。
Meaning
Receiving public attention or scrutiny.
Example
The editor has been **under the spotlight** after the controversial article.
编辑在有争议的文章之后**成为焦点**。
idiom

hard sell

一种激进或强迫的销售方式
Meaning
an aggressive or forceful sales approach
Example
Customers today dislike the **hard sell** approach.
今天的客户不喜欢**hard sell**的方式
idiom

draw inspiration from

受到某物的启发或影响
Meaning
to be motivated or influenced by something
Example
He **drew inspiration from** nature for his latest painting.
他为自己的最新画作**从自然中汲取了灵感**。
idiom

push your luck

冒险希望获得更多成功
Meaning
take a risk hoping for more success
Example
You already got a discount, don’t **push your luck**.
你已经获得了折扣，不要再 **试探运气**。
idiom

fill out

通过提供信息来填写表格
Meaning
to complete a form by providing information
Example
Please **fill out** this survey after the workshop.
请在研讨会后填写此调查。
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

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

Put up walls

与他人建立情感上的隔阂或距离。
Meaning
To create emotional barriers or distance from others.
Example
After the breakup, she **put up walls** and stopped trusting people.
分手后，她**筑起了心墙**，不再信任他人。
idiom

pull the strings

秘密地控制或影响某人或某事
Meaning
to control or influence someone or something secretly
Example
He got the job because his uncle **pulled the strings**.
他得到了这份工作，因为他的叔叔**拉了后退的线**。
idiom

old friend

你认识很久的朋友
Meaning
a friend you have known for a long time
Example
I met an **old friend** from college yesterday.
我昨天遇到了一个大学的老朋友。
idiom

feel comfortable in your own skin

对自己感到自信和放松
Meaning
to be confident and relaxed about who you are
Example
She finally **feels comfortable in her own skin**.
她终于**在自己的皮肤中感到舒适**。
idiom

school of hard knocks

通过艰难的生活经历学习
Meaning
learning through difficult life experiences
Example
He didn’t go to college; he learned from the **school of hard knocks**.
他没有上大学；他从**艰难教训学校**中学习。
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

on the witness stand

在法庭上作证
Meaning
to be giving testimony in court
Example
The victim was nervous while **on the witness stand**.
受害者在证人席上很紧张。
idiom

pay through the nose

为某物支付非常高的价格
Meaning
to pay a very high price for something
Example
We **paid through the nose** for that concert ticket.
我们为那张音乐会票付出了高昂的价格。
idiom

break a leg

祝愿某人在表演中好运
Meaning
to wish someone good luck in a performance
Example
Before the play started, everyone told her to **break a leg**.
在戏剧开始之前，每个人都告诉她要**祝她好运**。
idiom

To meet one’s Waterloo

遭遇最终的失败或挫折。
Meaning
To encounter one’s ultimate defeat or failure.
Example
After years of success, the company finally **met its Waterloo**.
经过多年的成功，这家公司终于**遇到了它的滑铁卢**。
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

run someone down

不公平地批评某人；说某人坏话
Meaning
to criticize someone unfairly; to speak badly about someone
Example
He always **runs his coworkers down** behind their backs.
他总是在背后说同事的坏话。
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

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

take a leaf out of someone’s book

模仿或跟随某人的好榜样
Meaning
to imitate or follow someone’s good example
Example
Other cities should **take a leaf out of Copenhagen’s book** on eco-friendly transport.
其他城市应该**从哥本哈根的书中取经**，学习生态友好的交通方式。
idiom

put your nose to the grindstone

努力工作并专注于某事
Meaning
to work hard and focus on something
Example
If you want to succeed, you have to **put your nose to the grindstone**.
如果你想成功，你必须**努力工作**。
idiom

Know the drill

熟悉某个例程或程序。
Meaning
To be familiar with a routine or procedure.
Example
Everyone here **knows the drill** during an emergency.
这里每个人都知道在紧急情况下该做什么。
idiom

get through to someone

让某人理解你想表达的意思
Meaning
to make someone understand what you mean
Example
I tried to **get through to him**, but he just wouldn’t listen.
我试图**get through to him**，但他根本不想听。
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

tack on

在最后添加额外内容
Meaning
to add something extra, especially at the end
Example
They **tacked on** a brief Q&A after the session.
他们在会议后**添加**了简短的问答环节。
idiom

Cultural shock

当接触到不同的文化或生活方式时的困惑感
Meaning
A feeling of confusion when exposed to a different culture or way of life
Example
Moving from a small village to a big city gave me **cultural shock**.
从一个小村庄搬到大城市让我感到文化冲击。
idiom

take a load off

坐下来放松，尤其是在辛苦工作后
Meaning
to sit down and relax, especially after working hard
Example
Come in and **take a load off**.
进来，**放松一下**。
idiom

to pass with flying colors

以非常高的分数成功
Meaning
to succeed with a very high score
Example
He studied hard and passed the exam with **flying colors**.
他努力学习，顺利通过了考试，取得了 **flying colors**。
idiom

paint the town red

出去并疯狂庆祝
Meaning
to go out and celebrate wildly
Example
After the exam, we decided to **paint the town red**.
考试后，我们决定**paint the town red**。
idiom

leap forward

一次突然而重大的进步
Meaning
a sudden and significant progress
Example
This innovation represents a **leap forward** in technology.
这一创新代表了技术上的一次**飞跃**。
idiom

political football

一个不断争论的问题，且被用于政治利益
Meaning
an issue that is constantly debated and used for political gain
Example
The issue of immigration has become a **political football**, with both parties using it to score points.
移民问题已成为一个**政治足球**，双方都在利用它来得分。
idiom

on good terms

保持友好和平的关系
Meaning
to have a friendly and peaceful relationship
Example
They are still **on good terms** even after the breakup.
他们即使分手后仍然关系很好。
idiom

have a splitting headache

头痛得厉害
Meaning
to have a very bad headache
Example
I can’t focus right now; I **have a splitting headache**.
我现在无法集中注意力；我头痛得厉害。
idiom

the end of the road

进展停止的点；某事的结束
Meaning
the point where progress stops; the end of something
Example
For us, this is **the end of the road**.
对我们来说，这是**道路的尽头**。
idiom

Patience is bitter, but its fruit is sweet

虽然等待很苦，但结果是甜的。
Meaning
Although waiting is hard, it results in good outcomes.
Example
It might be tough, but **patience is bitter, but its fruit is sweet**.
这可能很难，但**耐心是苦的，但它的果实是甜的。**
idiom

Don’t give up hope

继续相信事情会变得更好。
Meaning
Keep believing that things will get better.
Example
**Don’t give up hope**, miracles can happen any time.
不要放弃希望，奇迹随时可能发生。
idiom

a leopard can't change its spots

一个人不能改变他们与生俱来的本性或特征
Meaning
someone cannot change their inherent nature or characteristics
Example
No matter how hard he tries, **a leopard can't change its spots**.
不管他怎么努力，一只豹子不能改变它的斑点。
idiom

brainstorm an idea

讨论并创造性地思考，以产生新的想法
Meaning
to discuss and think creatively to generate new ideas
Example
The teacher asked the class to **brainstorm ideas** for the project.
老师要求班级为项目**头脑风暴想法**。
idiom

stay on task

继续专注于需要做的事情
Meaning
to continue focusing on what needs to be done
Example
Try to **stay on task** even when things get difficult.
即使事情变得困难，也要尽量**stay on task**
idiom

put first things first

先处理最重要的事情
Meaning
to focus on the most important things before others
Example
When managing time, always **put first things first**.
在管理时间时，始终要先处理最重要的事情。
idiom

at death’s door

濒临死亡
Meaning
very close to death
Example
He was **at death’s door** before the doctors saved him.
他在医生救他之前濒临死亡。
idiom

a trusted ally

一个可以信任并且可靠的人或团体
Meaning
a person or group that is trusted and reliable
Example
She has always been **a trusted ally** in our business ventures.
她一直是我们商业计划中的**一个可信赖的盟友**。
idiom

overfitting

当一个模型在训练数据上表现良好，但在未见过的数据上表现差
Meaning
when a model performs well on training data but poorly on unseen data
Example
The model seems to be **overfitting** because it performs well on the training data but poorly on the test set.
模型似乎在**过拟合**，因为它在训练数据上表现良好，但在测试集上表现差。
idiom

iron curtain

在意识形态或政治上分隔国家的障碍
Meaning
a barrier separating nations ideologically or politically
Example
During the Cold War, Europe was divided by the **iron curtain**.
在冷战期间，欧洲被**铁幕**分隔开。