on the level
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idiom

on the level

诚实和真诚; 不试图欺骗
Meaning
honest and sincere; not trying to deceive
Example
You can trust her—she’s **on the level**.
你可以信任她—她非常诚实。
idiom

old friends are gold

老朋友是宝贵和珍贵的
Meaning
old friends are precious and valuable
Example
I always say, **old friends are gold**.
我总是说，**老朋友是黄金**。
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

on the sly

秘密地; 以狡猾的方式
Meaning
secretly; in a sneaky way
Example
He met her **on the sly** without telling anyone.
他**秘密地**见到她，没告诉任何人。
idiom

out of orbit

失去控制; 偏离常规路线
Meaning
beyond control; off the usual path
Example
The project went **out of orbit** after the manager left.
项目在经理离开后**离轨**了。
idiom

on the rise

价值或数量正在增加或增长
Meaning
increasing or growing in value or number
Example
Tech stocks are **on the rise** this quarter.
本季度科技股正在**上涨**。
phrasal-verb

open hearts to

向其他文化的人们展示善良和接受
Meaning
to show kindness and acceptance toward people of other cultures
Example
We should **open our hearts to** people who are different from us.
我们应该**向不同于我们的人敞开心扉**。
idiom

On the drawing board

在规划或设计阶段
Meaning
In the planning or design stage
Example
The new product is still **on the drawing board**, but it will be launched next year.
新产品仍然处于设计阶段，但将在明年发布。
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。
phrasal-verb

open up to differences

接受并欣赏多样性
Meaning
to accept and appreciate diversity
Example
Children should learn to **open up to differences** from an early age.
孩子们应该从小学习**接纳差异**。
idiom

on the gravy train

处于一种通过少量努力赚取大量金钱的状态
Meaning
to be in a situation where one makes a lot of money with little effort
Example
He’s been riding **on the gravy train** since he took over the family business.
自从接管家族企业以来，他一直在**格雷维火车**上。
idiom

off the wall

不寻常或非常规
Meaning
unusual or unconventional
Example
His ideas are often **off the wall**, but they sometimes work.
他的想法常常**off the wall**，但有时会有效。
phrasal-verb

own your progress

为个人成长感到骄傲并承认它
Meaning
to take pride in and acknowledge your personal growth
Example
You should **own your progress** and celebrate every small win.
你应该**own your progress**，并庆祝每一个小小的胜利。
idiom

Open a can of worms

开始做一些会带来许多新问题的事情。
Meaning
To start something that creates many new problems.
Example
By questioning the policy, he **opened a can of worms**.
通过质疑政策，他**打开了一罐蠕虫**。
phrasal-verb

opt against

决定不选择特定选项
Meaning
to decide not to choose a particular option
Example
After considering the risks, the company **opted against** the merger.
在考虑了风险之后，公司**选择反对**合并。
phrasal-verb

open onto

通向一个地方或连接的机会
Meaning
to lead to a place or opportunity for connection
Example
This conversation could **open onto** a deeper understanding between us.
这段对话可能会**开向**我们之间更深的理解。
idiom

out like a light

很快就睡着了
Meaning
to fall asleep very quickly
Example
He was **out like a light** as soon as his head hit the pillow.
他的头一碰到枕头就睡着了。
idiom

Out to pasture

让某人或某物退出活跃使用。
Meaning
To retire someone or something from active use.
Example
The old manager was finally **put out to pasture** last year.
那位老经理去年终于退休了。
idiom

off the hook

摆脱某事的指责或责任
Meaning
to be free from blame or responsibility for something
Example
He was **off the hook** after his friend confessed.
在他的朋友承认之后，他摆脱了责任。
idiom

over the hill

过了巅峰期；不再年轻或处于最佳状态
Meaning
past one's prime; no longer young or at peak performance
Example
Some people think turning forty means you’re **over the hill**, but that’s not true.
有些人认为四十岁意味着你已经**过气了**，但事实并非如此。
idiom

on the same playing field

在相同的条件下或具有相等的机会
Meaning
in the same conditions or with equal chances
Example
We’re now **on the same playing field** as our competitors.
我们现在与我们的竞争对手站在同一起跑线上。
phrasal-verb

open emotionally to

允许情感脆弱并向某人表达真实的感受
Meaning
to allow emotional vulnerability and express real feelings to someone
Example
It’s hard for him to **open emotionally to** others after being hurt.
他很难在受伤后**在情感上向别人开放**。
idiom

offbeat

不寻常；不同于常规
Meaning
unusual; different from the norm
Example
His **offbeat** sense of humor makes everyone laugh.
他的**离经叛道**幽默让每个人都笑了。
idiom

On the clock

工作中，通常有严格的时间限制或截止日期。
Meaning
Working, often with a strict time limit or deadline.
Example
I’m **on the clock** today, so I can’t waste any time.
我今天**在上班**，所以不能浪费时间。
idiom

Out of one’s depth

处于一种过于难以理解或应对的情况。
Meaning
To be in a situation that is too difficult to understand or deal with.
Example
I felt **out of my depth** in that technical discussion.
在那次技术讨论中，我感到**超出我的深度**。
idiom

One step at a time

逐渐处理任务，而不是一次完成所有的任务。
Meaning
Handle tasks gradually and not all at once.
Example
Don't stress, just take **one step at a time**.
别担心，只需**一步一步来**。
idiom

on the stump

为政治职位竞选，特别是在公共场合发表演讲
Meaning
to campaign for political office, especially by giving speeches in public
Example
The candidate has been **on the stump** for weeks, rallying support across the country.
候选人已经在**竞选**了几个星期，在全国各地争取支持。
idiom

out of harm’s way

远离危险或困难。
Meaning
To be safe from danger or difficulty.
Example
Make sure the children are **out of harm’s way** before lighting the fire.
在点火之前，确保孩子们远离危险。
idiom

Out of focus

不清楚或不专心
Meaning
Not clear or not paying attention
Example
He looked tired and completely **out of focus** during the meeting.
他在会议期间看起来很累，完全没有集中注意力。
idiom

on the bench

在法庭上担任法官
Meaning
serving as a judge in a court
Example
She spent 20 years **on the bench** before retiring.
她在退休之前作为法官工作了20年。
idiom

out of bounds

不允许或超出可接受的限制
Meaning
not allowed or beyond acceptable limits
Example
His rude comment was **out of bounds**.
他的粗鲁评论超出了界限
phrasal-verb

open communication with

建立一个诚实透明的思想和情感交换
Meaning
to establish an honest and transparent exchange of thoughts and feelings
Example
Couples should **open communication with** each other to avoid misunderstandings.
情侣们应该**开启沟通与**彼此，以避免误解。
idiom

on the right side of the law

合法行事; 不违反任何法律
Meaning
acting legally; not breaking any laws
Example
He wants to stay **on the right side of the law**.
他想保持 **在法律的正确一方**。
idiom

On the record

正式声明并可报告
Meaning
Officially stated and reportable
Example
She made her statement **on the record** during the interview.
她在面试中做了**正式声明**。
idiom

own the mistake

承担做错事的责任
Meaning
to take responsibility for doing something wrong
Example
A good leader knows how to **own the mistake** and learn from it.
一个好的领导知道如何承担错误并从中学习。
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。
phrasal-verb

open up to others

与其他文化的人分享思想和感受
Meaning
to share thoughts and feelings with people from other cultures
Example
When you **open up to others**, you start to understand their perspectives better.
当你**向他人敞开心扉**时，你会开始更好地理解他们的观点。
idiom

Out of fashion

不再流行或受欢迎
Meaning
No longer trendy or popular
Example
Those jeans went **out of fashion** years ago.
那些牛仔裤多年前就不流行了。
idiom

on the grapevine

间接听到八卦或谣言
Meaning
to hear gossip or rumor indirectly
Example
I heard **on the grapevine** that they’re getting divorced.
我**从八卦中听说**他们要离婚了。
idiom

Out of sight, out of mind

当人或事物不可见或不在场时被遗忘。
Meaning
People or things forgotten when not visible or present.
Example
After moving away, our friendship faded—**out of sight, out of mind**.
搬家后，我们的友谊逐渐消退——**眼不见，心不烦**。
idiom

out of sorts

感到稍微不舒服或不高兴
Meaning
feeling slightly unwell or upset
Example
He’s been **out of sorts** since he caught that cold.
自从感冒后，他就一直有些不高兴。
idiom

open the floodgates

允许某事在大规模上发生；触发连锁反应
Meaning
to allow something to happen on a large scale; to trigger a chain reaction
Example
When the security flaw was leaked, it **opened the floodgates** for hackers worldwide.
当安全漏洞泄露时，它为全球的黑客**打开了洪水闸门**。
idiom

off the cuff

没有准备的讲话或表演
Meaning
to speak or perform without preparation
Example
He gave an **off the cuff** remark that impressed everyone.
他发表了一个即兴的评论，给大家留下了深刻印象。
idiom

off the top of your head

在没有深入思考或准备的情况下说某事
Meaning
to say something without deep thinking or preparation
Example
I can’t remember the exact number **off the top of my head**.
我不能记得准确的数字 **脱口而出**
idiom

on the same page

对某事有相同的理解或达成一致意见
Meaning
to agree or have the same understanding about something
Example
Before we continue, let’s make sure we’re **on the same page**.
在我们继续之前，请确保我们**在同一页面**上。
phrasal-verb

open through

通过经历另一种文化的经验来获得理解
Meaning
to access understanding by going through experiences of another culture
Example
You can **open through** empathy to truly understand cultural values.
你可以通过**open through**同理心来真正理解文化价值。
idiom

on cloud nine

极度快乐; 欣喜若狂
Meaning
extremely happy; overjoyed
Example
She was **on cloud nine** after getting the job.
她在得到工作后 **云上九**。
idiom

over it

对某事不再感兴趣或受到影响
Meaning
no longer interested or affected by something
Example
I'm totally **over it** now.
我现在完全不在意了。
phrasal-verb

open up new horizons

创造新的机会以学习或理解不同的文化
Meaning
to create new opportunities for learning or understanding different cultures
Example
Studying abroad can **open up new horizons** for personal and cultural growth.
出国留学可以为个人和文化成长**打开新的视野**。
idiom

on the rocks

处于困境或可能失败（特别是关系或婚姻）
Meaning
in trouble or likely to fail (especially a relationship or marriage)
Example
Their marriage is **on the rocks** after constant arguments.
他们的婚姻在**困境中**，因为不断争吵。
idiom

on the mend

从疾病或受伤中恢复
Meaning
recovering from an illness or injury
Example
I was sick last week, but I’m **on the mend** now.
我上周生病了，但现在正在恢复中。
phrasal-verb

open with

通过做或说某事来开始某事
Meaning
to begin something by doing or saying something specific
Example
He **opened with** a personal story to connect with the audience.
他通过讲述一个个人故事开始，以便与观众建立联系。
idiom

own up to something

承认或坦白对某事负责
Meaning
to admit or confess responsibility for something
Example
You should **own up to your mistakes** instead of blaming others.
你应该**承认你的错误**，而不是责怪别人。
idiom

on the line

处于危险中；有丢失的风险
Meaning
at risk; in danger of being lost
Example
The company’s reputation is **on the line** after the failed shipment.
在运输失败后，公司的声誉**岌岌可危**。
phrasal-verb

open up markets

使贸易或商业机会可用；消除贸易障碍
Meaning
to make trade or business opportunities available; to remove barriers to trade
Example
The trade agreement helped **open up markets** for local exporters.
贸易协议帮助当地出口商打开了市场。
phrasal-verb

own out of

由于道德问题而停止参与
Meaning
to stop being involved because of ethical concerns
Example
The company **owned out of** the project due to ethical issues.
公司因道德问题退出了项目。
idiom

open-hearted

善良和诚实地表达感情
Meaning
kind and honest in expressing feelings
Example
She is an **open-hearted** person who always listens.
她是一个心地善良的人，总是倾听。
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。
phrasal-verb

open up to challenges

愿意以信心面对或接受困难的情况
Meaning
to be willing to face or accept difficult situations with confidence
Example
If you want to grow, you must **open up to challenges** instead of avoiding them.
如果你想成长，你必须**open up to challenges**，而不是回避它们。
phrasal-verb

open out your heart

与某人真诚地分享你深刻的情感
Meaning
to share your deep emotions honestly with someone
Example
He finally **opened out his heart** to his best friend.
他终于向他最好的朋友敞开了心扉。
idiom

on the house

免费；由店家招待
Meaning
free of charge; paid for by the establishment
Example
The drinks were **on the house** tonight.
今晚的饮料是店家请客的。
phrasal-verb

overflow with

充满积极的情感或情绪
Meaning
to have a large amount of positive feeling or emotion
Example
The parents were **overflowing with** pride at their son’s success.
父母因儿子的成功而**满溢着**骄傲。
idiom

Open-minded

愿意考虑新的想法或意见。
Meaning
Willing to consider new ideas or opinions.
Example
A good therapist must be **open-minded**.
一个好的治疗师必须**思想开放**。
idiom

out of left field

某事出乎意料或令人惊讶
Meaning
something unexpected or surprising
Example
His question came **out of left field** and shocked everyone.
他的提问**out of left field**，让所有人都感到震惊。
phrasal-verb

open up communication

开始或改善诚实和清晰的沟通
Meaning
to start or improve honest and clear communication
Example
They tried to **open up communication** to solve their issues.
他们试图**打开沟通**以解决他们的问题。
idiom

On the breadline

生活在贫困中或几乎没有钱。
Meaning
Living in poverty or with very little money.
Example
After losing his job, he was almost **on the breadline**.
失业后，他几乎处于**安德布雷德莱恩**状态。
idiom

on the ball

机警、聪明并且反应迅速
Meaning
alert, smart, and quick to react
Example
You need to be **on the ball** to handle this job.
你需要非常机警才能处理这份工作。
idiom

offstage

在公众视野之外或私人生活中
Meaning
outside of public attention or in private life
Example
He is very different **offstage** than he appears in his shows.
他在舞台下的表现与他在节目中展现的完全不同。
phrasal-verb

open around

与附近的人友好并且情感上可接触
Meaning
to act friendly and emotionally available with people nearby
Example
She always **opens around** people she trusts.
她总是向她信任的人敞开心扉。
idiom

out of one’s mind

疯狂或极度担忧
Meaning
crazy or extremely worried
Example
He must be **out of his mind** to drive so fast in the rain.
他一定是**疯了**，才会在雨中开车这么快。
idiom

out of the woods

不再处于危险或困难之中
Meaning
no longer in danger or difficulty
Example
She’s recovering now, so she’s **out of the woods**.
她现在正在康复，所以她已经脱离危险。
phrasal-verb

open doors to

为文化连接或理解创造机会
Meaning
to create opportunities for cultural connection or understanding
Example
Cultural exchange programs **open doors to** meaningful friendships worldwide.
文化交流项目**打开通往**全球有意义的友谊。
idiom

off the beaten track

在一个很少有人去的地方；偏远或不寻常
Meaning
in a place not visited by many people; remote or unusual
Example
We found a lovely beach **off the beaten track**.
我们发现了一个美丽的海滩，远离人群。
idiom

on the go

总是忙碌或活跃；经常旅行
Meaning
always busy or active; traveling a lot
Example
She's always **on the go** with her work trips.
她总是忙于工作旅行。
idiom

out of the picture

不再涉及或相关
Meaning
no longer involved or relevant
Example
After the gallery closed, the curator was **out of the picture**.
画廊关闭后，策展人不再是其中的一部分。
idiom

out of the box

富有创意，与通常的想法不同
Meaning
creative and different from usual ideas
Example
Her **out of the box** marketing strategy increased sales rapidly.
她的**out of the box**营销策略迅速提高了销售额。
idiom

on the right track

走在通往成功的正确道路上
Meaning
to be going in the correct direction to achieve success
Example
Your plan sounds great — you’re **on the right track**.
你的计划听起来很棒——你走在正确的道路上。
phrasal-verb

open up new perspectives

帮助某人以新的或不同的方式看待事物
Meaning
to help someone see things in a new or different way
Example
Traveling to different countries can **open up new perspectives** on life.
到不同的国家旅行可以 **开启新的视角** 关于生活。
idiom

on the stand

作为证人在法庭上作证
Meaning
testifying as a witness in court
Example
She was nervous when she was **on the stand**.
她在 **证人席** 上时感到很紧张。
idiom

outstanding in one’s field

在自己的工作中卓越
Meaning
to be exceptionally good at one’s work
Example
She’s **outstanding in her field** as a scientist.
她作为科学家在自己的领域内卓越。
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。
phrasal-verb

open yourself up to feedback

愿意接受并接受建设性的批评
Meaning
to be willing to receive and accept constructive criticism
Example
To grow, you need to **open yourself up to feedback** from others.
要成长，你需要**愿意接受他人的反馈**。
phrasal-verb

open up trade

通过消除障碍使国际贸易更容易
Meaning
to make international trade easier by removing barriers
Example
The new agreement will **open up trade** between the two nations.
新协议将**开放贸易**，促进两国之间的贸易。
idiom

open and shut case

一个容易决定或显而易见的案件
Meaning
a case that is easily decided or obvious
Example
It was an **open and shut case** with clear evidence.
这是一个有明确证据的显而易见的案件。
phrasal-verb

open with gratitude

通过表达感谢来开始对话或消息
Meaning
to start a conversation or message by expressing thanks
Example
She **opened with gratitude** before discussing the main issue.
她在讨论主要问题之前先表达了感激之情。
idiom

Open book

一个容易理解或透明的人
Meaning
Someone who is easy to understand or transparent.
Example
She’s an **open book**; you always know what she’s thinking.
她是一本**open book**; 你总是知道她在想什么。
idiom

out of the box thinking

以新颖、创新或创造性的方式思考
Meaning
thinking in a new, innovative, or creative way
Example
The solution requires **out of the box thinking** from all team members.
该解决方案需要所有团队成员进行**跳出思维定式的思考**。
phrasal-verb

open yourself to

允许自己体验情感或连接
Meaning
to allow yourself to experience emotions or connections
Example
He finally decided to **open himself to** love again.
他最终决定再次向爱敞开心扉。
idiom

out of the blue

出乎意料或没有预警
Meaning
unexpectedly or without warning
Example
My old friend called me **out of the blue** after ten years.
我十年后**突然**接到了老朋友的电话。
idiom

open up about

分享个人的想法或感受
Meaning
to share personal thoughts or feelings
Example
He finally **opened up about** the project stress.
他终于谈到了项目压力。
phrasal-verb

own responsibility for

接受你为发生的事情负责
Meaning
to accept that you are accountable for something that happened
Example
He chose to **own responsibility for** the team’s delay.
他选择为团队的延误负责。
phrasal-verb

open up to ideas

接受新颖和不同的想法
Meaning
to be receptive to new and different ideas
Example
We should **open up to ideas** from junior staff as well.
我们也应该接受来自初级员工的想法。
idiom

one in a million

非常特别或稀有
Meaning
very special or rare
Example
Her kindness makes her **one in a million**.
她的善良使她成为**百万分之一**。
idiom

on the market

可供出售
Meaning
available for sale
Example
Their house has been **on the market** for over six months.
他们的房子已经在市场上待了超过六个月。
idiom

on edge

感到紧张、烦躁或易怒
Meaning
to be nervous, tense, or irritable
Example
She’s been **on edge** since the exam started.
自从考试开始以来，她一直很紧张。
idiom

out of the frying pan into the fire

从糟糕的情况进入更糟糕的情况
Meaning
to go from a bad situation to a worse one
Example
Leaving that job was like jumping **out of the frying pan into the fire**.
离开那份工作就像是跳**出火坑进火海**。
idiom

once in a blue moon

非常罕见
Meaning
very rarely
Example
I only see him **once in a blue moon**.
我很少见到他。
idiom

on the front line

直接参与某事中最活跃或最危险的部分
Meaning
directly involved in the most active or dangerous part of something
Example
Doctors were **on the front line** during the pandemic.
在疫情期间，医生们**在前线**。
idiom

on the cutting edge

处于创新或技术的前沿
Meaning
at the forefront of innovation or technology
Example
The laboratory is **on the cutting edge** of artificial intelligence research.
实验室处于人工智能研究的前沿。
phrasal-verb

open up over

因某个特定话题分享个人想法
Meaning
to share personal thoughts because of a particular topic
Example
She finally **opened up over** her anxiety during group coaching.
她终于在小组辅导中分享了她的焦虑。
idiom

on your own shoulders

对某事负责
Meaning
to be responsible for something yourself
Example
The success of this event rests **on your own shoulders**.
这个事件的成功完全取决于你自己肩膀上的责任。
phrasal-verb

open doors for

为连接或合作创造机会或可能性
Meaning
to create opportunities or possibilities for connection or collaboration
Example
Joining community events can **open doors for** meaningful relationships.
加入社区活动可以为**有意义的关系打开大门**。
phrasal-verb

open up to change

愿意接受新思想或实践
Meaning
to become willing to accept new ideas or practices
Example
Societies progress when people **open up to change**.
当人们愿意接受变化时，社会会进步。
idiom

on solid ground

处于安全或稳定的状况
Meaning
in a safe or stable situation
Example
After months of hard work, the company is now **on solid ground**.
经过几个月的辛勤工作，公司现在处于稳定的状况。
idiom

off script

偏离预定的计划或演讲
Meaning
to deviate from a prepared plan or speech
Example
During the meeting, he went **off script** and made some bold statements.
在会议期间，他**离开剧本**并做出了一些大胆的陈述。
phrasal-verb

open yourself up to

允许自己表达感情或变得脆弱
Meaning
to allow yourself to express feelings or be vulnerable
Example
He learned to **open himself up to** love again.
他学会了再次对爱情敞开心扉。
phrasal-verb

open the heart to

向某人表达真诚的情感
Meaning
to express your honest emotions to someone
Example
He finally **opened his heart to** his parents.
他终于 **向父母敞开了心扉**。
phrasal-verb

open access to opportunities

使教育、工作或服务可供更多人使用
Meaning
to make education, jobs, or services available to more people
Example
Digital transformation helps **open access to opportunities** globally.
数字化转型有助于在全球范围内**打开机会的大门**。
idiom

on the spot

立即做出决定
Meaning
to make a decision immediately
Example
He was asked to decide **on the spot**.
他被要求**当场**做出决定。
idiom

on one's shoulders

承担某事的责任或负担
Meaning
having the responsibility or burden of something
Example
The success of the project is **on his shoulders**.
项目的成功**落在他肩上**。
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。
phrasal-verb

open up to courage

允许勇气和自信进入一个人的内心
Meaning
to allow bravery and confidence to enter one’s mind
Example
She slowly **opened up to courage** after years of doubt.
在多年的怀疑之后，她慢慢地**向勇气敞开心扉**。
idiom

On a shoestring budget

用很少的钱做事或生活。
Meaning
To live or do something with very little money.
Example
They traveled across Asia **on a shoestring budget**.
他们以**紧张的预算**穿越了亚洲。
idiom

online presence

一个人或企业在互联网上的存在和活动
Meaning
the existence and activity of a person or business on the internet
Example
A strong **online presence** is essential for digital marketing.
强大的**在线存在**对于数字营销至关重要。
phrasal-verb

own up to mistakes

公开承认错误，以便可以修正
Meaning
to admit errors openly so they can be fixed
Example
Good leaders **own up to mistakes** before they snowball.
好的领导者在错误变得严重之前会承认错误。
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

out of this world

极其好或令人印象深刻
Meaning
extremely good or impressive
Example
The food at that restaurant is **out of this world**.
那家餐厅的食物令人赞叹。
idiom

old buddy old pal

一种亲切地称呼老朋友的方式。
Meaning
An affectionate way to refer to a longtime friend.
Example
Hey **old buddy old pal**, long time no see!
嘿，老朋友，好久不见！
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

outside the box

以不寻常或非常规的方式思考或行动
Meaning
thinking or acting in an unusual or unconventional way
Example
To solve this problem, we need to think **outside the box**.
为了解决这个问题，我们需要**跳出框框**思考。
idiom

on your last legs

完全筋疲力尽或濒临崩溃
Meaning
completely exhausted or near collapse
Example
After working 18 hours straight, I was **on my last legs**.
连续工作了18小时后，我已经**精疲力尽**了。