old friend
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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。
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

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

on one’s last legs

接近力气或生命的尽头
Meaning
to be near the end of one’s strength or life
Example
After the long hike, we were all **on our last legs**.
经过长时间的徒步旅行后，我们都快撑不住了。
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。
idiom

on the fence

对某事感到不确定或犹豫不决
Meaning
undecided or unsure about something
Example
She’s still **on the fence** about moving abroad.
她仍然对是否搬到国外**在围栏上**。
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 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

on your shoulders

用来表示某人对某事负有责任
Meaning
used when someone has responsibility for something
Example
The success of this plan rests **on your shoulders**.
这个计划的成功取决于你。
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

own it

为你是谁或你做的事而感到骄傲
Meaning
to take pride in who you are or what you do
Example
Don’t be shy about your success—**own it**!
不要因你的成功而感到害羞——**自豪吧**！
phrasal-verb

open up to joy

让自己感受到幸福和积极性
Meaning
to allow yourself to feel happiness and positivity
Example
When you **open up to joy**, life becomes brighter.
当你**向喜悦敞开心扉**时，生活变得更加光明。
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。
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。
idiom

open heart

在感情和行动上诚实与友善
Meaning
to be honest and kind in feelings and actions
Example
He welcomed everyone with an **open heart**.
他以开诚布公的心欢迎每个人。
phrasal-verb

own the mistake quickly

立即承认错误
Meaning
to admit an error right away
Example
I **own the mistake quickly** and explain the fix to my team.
我会立即承认错误，并向团队解释解决方案。
idiom

on cue

在正确的时刻
Meaning
exactly at the right moment
Example
The dog barked **on cue** when the actor opened the door.
演员一开门，狗狗**准时**叫了。
idiom

Out of curiosity

出于想要知道或学习某事的愿望。
Meaning
Because of a desire to know or learn something.
Example
I asked him **out of curiosity**, not to interfere.
我出于**好奇**问了他，而不是为了干涉。
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。
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

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。
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。
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。
phrasal-verb

offer help

在某人需要帮助时提供帮助
Meaning
to volunteer to assist someone kindly
Example
It’s thoughtful to **offer help** when someone is struggling.
当有人在困难中时提供帮助是体贴的表现。
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

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**。
phrasal-verb

open yourself to experiences

愿意尝试新的文化活动或视角
Meaning
to be willing to try new cultural activities or perspectives
Example
When you **open yourself to experiences**, you grow beyond your comfort zone.
当你敞开心扉接受新的体验时，你会超越自己的舒适区。
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。
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

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

on the horizon

即将发生
Meaning
likely to happen soon
Example
A new product launch is **on the horizon**.
新产品的发布即将到来。
idiom

on your plate

需要你处理的责任或工作
Meaning
something that is your responsibility or job to handle
Example
I have too much **on my plate** right now with all the projects.
现在我有太多的事情 **在我的盘子里**，有所有的项目。
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 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。
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

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

over the horizon

即将发生的事情
Meaning
something that is expected to happen soon
Example
A big change in the market may be **over the horizon**.
市场上可能会有重大变化。
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。
phrasal-verb

open up to trade

开始允许国际贸易或经济交换
Meaning
to start allowing international trade or economic exchange
Example
Many developing nations are trying to **open up to trade** to attract foreign investment.
许多发展中国家正在努力**开放贸易**以吸引外国投资。
phrasal-verb

open up opportunities

创造新的学习或联系的机会
Meaning
to create new chances or possibilities for learning or connection
Example
Understanding other cultures can **open up opportunities** for collaboration.
了解其他文化可以为合作打开新机会
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 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。
phrasal-verb

open up to

变得更愿意接受或考虑新的想法、文化或人
Meaning
to become more willing to accept or consider new ideas, cultures, or people
Example
As globalization spread, many countries began to **open up to** cultural exchange.
随着全球化的传播，许多国家开始**open up to**文化交流。
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

on all fours

用手和膝盖爬行
Meaning
crawling on hands and knees
Example
The baby moved **on all fours** across the floor.
宝宝**四肢着地**在地板上爬行。
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

out of memory

无法清晰思考；精神上筋疲力尽
Meaning
unable to think clearly; mentally exhausted
Example
After working all night, I was completely **out of memory**.
通宵工作后，我精神上完全筋疲力尽。
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

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

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 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。
phrasal-verb

open toward

对某人表示温暖或接受
Meaning
to show warmth or acceptance toward someone
Example
He became more **open toward** his classmates.
他变得更加**对同学开放**。
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

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

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。
idiom

out of bandwidth

太忙或太累，无法处理更多任务
Meaning
too busy or overwhelmed to handle more tasks
Example
I’m **out of bandwidth** today, can we talk tomorrow?
我今天太忙了，我们明天可以谈吗？
phrasal-verb

open up emotionally

允许他人看到你的感受或情感状态
Meaning
to allow others to see your feelings or emotional state
Example
He started to **open up emotionally** after therapy.
他在治疗后开始**情感上开放**。
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

off the top of my head

没有太多思考或准备
Meaning
without much thought or preparation
Example
Off the top of my head, I’d say we need more time.
我会说我们需要更多的时间，虽然只是随便说说。
phrasal-verb

open minds through dialogue

通过开放的交流促进不同文化之间的理解
Meaning
to encourage understanding between cultures by communicating openly
Example
The conference aimed to **open minds through dialogue** between communities.
会议的目的是在社区之间通过**对话开启思维**。
phrasal-verb

open out with

开始与某人坦诚地表达情感
Meaning
to start being honest and expressive with someone about emotions
Example
She **opened out with** her husband about her anxiety.
她向丈夫敞开心扉，谈论她的焦虑。
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。
phrasal-verb

open up to diversity

开放多样性
Meaning
to become accepting and appreciative of different backgrounds or perspectives
Example
Education helps people **open up to diversity** and reduce prejudice.
教育帮助人们开放多样性并减少偏见。
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

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

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

off the air

停止广播
Meaning
no longer being broadcasted
Example
The show went **off the air** after ten years.
该节目在十年后停止了广播。
idiom

on trial

正在被测试或审判
Meaning
being tested or judged
Example
The company is **on trial** for violating privacy laws.
该公司因违反隐私法而正在**受审**。
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。
phrasal-verb

open channels with

与个人或团体开始沟通
Meaning
to start communication with an individual or group
Example
The company **opened channels with** its overseas partners to share updates.
公司已与海外合作伙伴开通了渠道以分享更新。
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**。
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。
idiom

on top of the world

感到非常快乐和成功
Meaning
to feel extremely happy and successful
Example
After winning the award, he felt **on top of the world**.
在赢得奖项后，他觉得自己是世界之巅。
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**。
idiom

own up to your mistakes

承认你做错了事
Meaning
to admit that you have done something wrong
Example
It takes courage to **own up to your mistakes**.
承认自己的错误需要勇气。
idiom

open channels of communication

建立对话或讨论
Meaning
to establish dialogue or discussion
Example
They tried to **open channels of communication** with the neighboring country.
他们试图与邻国打开沟通渠道。
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

open up to feedback

愿意听取并接受建设性的批评
Meaning
to be willing to listen and accept constructive criticism
Example
A good leader must **open up to feedback** from the team.
一个好的领导者必须**对反馈开放**来自团队。
idiom

on the radar

正在被监视或考虑的某事
Meaning
something that is being monitored or considered
Example
The new scientific theory is now **on the radar** of researchers across the world.
新的科学理论现在已经**在雷达上**，全球的研究人员都在关注。
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 the lines of communication

在一段沉默之后重新开始交谈
Meaning
to start talking again after a period of silence
Example
She wanted to **open the lines of communication** with her best friend again.
她想再次与她最好的朋友**打开沟通渠道**。
phrasal-verb

open up space for joy

在痛苦之后为快乐腾出情感空间
Meaning
to make emotional room for happiness after pain
Example
After forgiving herself, she began to **open up space for joy**.
原谅自己后，她开始为快乐腾出空间。
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**。
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
idiom

outsmart the algorithm

击败或欺骗使用人工智能或自动化的系统
Meaning
to beat or trick a system that uses AI or automation
Example
People try to **outsmart the algorithm** to boost their posts.
人们试图通过**欺骗算法**来增加他们的帖子曝光。
idiom

on the money

完全正确或准确
Meaning
exactly correct or accurate
Example
His prediction about the stock was **on the money**.
他对股票的预测是 **on the money**。
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。
phrasal-verb

open within

与内心情感连接，更好地理解自己
Meaning
to connect with your inner emotions and understand yourself better
Example
Yoga helps me to **open within** and feel peaceful.
瑜伽帮助我**open within**并感到平静。
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。
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。
phrasal-verb

owe to

感觉你应该感谢某人某事
Meaning
to feel you should thank someone for something
Example
I **owe my success to** my parents’ support.
我将我的成功归功于我父母的支持。
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**。
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。
phrasal-verb

open out of yourself

自由地表达你的真实感受；变得情感上可接近
Meaning
to express your true feelings freely; to become emotionally available
Example
It's healthy to **open out of yourself** when you're feeling overwhelmed.
当你感到不堪重负时，**情感开放**是健康的。
idiom

opt in

选择参与
Meaning
to choose to participate
Example
Employees can **opt in** to the wellness program.
员工可以选择参与健康项目。
idiom

Old school

拥有传统的观念或价值观；不现代
Meaning
Having traditional ideas or values; not modern
Example
My father still prefers handwritten letters; he’s really **old school**.
我父亲仍然更喜欢手写信件；他真的是老派。
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

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

open up

变得愿意分享想法或开始操作
Meaning
to become willing to share thoughts or to start operating
Example
He finally **opened up** about the challenges he’s facing.
他终于开始谈论他面临的挑战。
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

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

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

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。
idiom

opt out of

选择不参加某事
Meaning
to choose not to participate in something
Example
You can **opt out of** the newsletter at any time.
你可以随时取消订阅这个通讯。
idiom

on the big screen

出现在电影中
Meaning
appearing in a cinema film
Example
Her novel was adapted **on the big screen** last year.
她的小说去年在**大银幕上**改编。
idiom

own your mistakes

对自己犯的错误承担责任。
Meaning
to take responsibility for what you did wrong.
Example
It’s important to **own your mistakes** and learn from them.
重要的是要**承担自己的错误**并从中学习。
phrasal-verb

open up about kindness

诚实地谈论善行或感恩之事
Meaning
to speak honestly about acts of kindness or gratitude
Example
He finally **opened up about kindness** he received from strangers.
他终于**开放关于善良**，他从陌生人那里获得的善意
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

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。
phrasal-verb

open out

变得更有信心，放松，并在情感上更具表现力。
Meaning
to become more confident, relaxed, and expressive emotionally
Example
He started to **open out** after making new friends at work.
他在工作中结交新朋友后开始变得更有信心。
phrasal-verb

open up to someone

与您信任的人分享个人感受或问题
Meaning
to share personal feelings or problems with someone you trust
Example
He finally **opened up to** his friend about what he had been going through.
他终于**对他的朋友敞开心扉**，讲述了他经历的事情。
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。
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

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**。
idiom

offline mode

断开互联网或无法使用的状态
Meaning
a state of being disconnected from the internet or unavailable
Example
He’s been in **offline mode** all weekend, not answering any messages.
他整个周末都处于离线模式，没有回复任何消息。
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 shaky ground

在不确定或不稳定的情况下
Meaning
in an uncertain or unstable situation
Example
His business is **on shaky ground** after the market crash.
他的生意在市场崩溃后**岌岌可危**。
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。
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。
phrasal-verb

open relations with

与另一个国家建立正式或友好的关系
Meaning
to start official or friendly relations with another country
Example
After years of tension, the two countries agreed to **open relations with** each other.
经过多年的紧张关系，两国同意与彼此建立关系。