A true friend is one who stands by you
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All Types idiom phrasal-verb proverb
Content locale
EN 英语 BN 孟加拉语 HI 印地语 ES 西班牙语 FR 法语 DE 德语 RU 俄语 ZH 中文 JA 日语
All Expression Cards All Expressions
idiom

A true friend is one who stands by you

一个真正的朋友会在你困难的时候陪伴你
Meaning
A true friend will be there for you during difficult times
Example
Even in the worst of times, she proved to be a true friend. **A true friend is one who stands by you**.
即使在最糟糕的时候,她证明了自己是一个真正的朋友。**一个真正的朋友会在你困难的时候陪伴你**。
idiom

a go-getter

一个非常有活力并且决心成功的人
Meaning
someone who is very energetic and determined to succeed
Example
He’s **a go-getter** who never gives up on his goals.
他是一个**go-getter**,从不放弃他的目标。
idiom

a cold war

没有公开战争的政治敌对状态
Meaning
a state of political hostility without open warfare
Example
The two nations seem to be entering **a cold war** again.
这两个国家似乎又进入了一场冷战。
idiom

a thorn in one's side

不断的烦恼或问题的来源
Meaning
a constant source of annoyance or trouble
Example
The trade dispute has become **a thorn in our side**.
贸易争端已成为**我们侧面的刺**。
idiom

ahead of the game

有优势或做好充分准备
Meaning
to have an advantage or be well prepared
Example
She’s always **ahead of the game** with her planning.
她在计划方面总是领先一步。
idiom

at breaking point

如此紧张或疲惫,几乎无法应对
Meaning
so stressed or tired that one can hardly cope
Example
After working 80 hours this week, she’s **at breaking point**.
这周工作80小时后,她已经**处于崩溃边缘**。
idiom

a step in the right direction

朝着目标前进的小行动
Meaning
a small action that leads to progress towards a goal
Example
Completing the first phase of the project is definitely **a step in the right direction**.
完成项目的第一阶段无疑是 **a step in the right direction**。
idiom

at the eleventh hour

在最后时刻
Meaning
at the very last moment
Example
He submitted his assignment **at the eleventh hour**.
他在最后时刻提交了他的作业。
idiom

a ray of hope

可能成功或改善的一个小迹象
Meaning
a small sign of possible success or improvement
Example
The new treatment gave patients **a ray of hope**.
新的治疗给患者带来了**希望的光芒**。
idiom

a stroke of luck

偶然发生的好运
Meaning
something good that happens by chance
Example
It was **a stroke of luck** that I found my lost wallet.
我找到丢失的钱包真是**一场幸运**。
idiom

a Eureka moment

突然的发现或顿悟时刻
Meaning
a moment of sudden discovery or realization
Example
He had **a Eureka moment** when he solved the equation.
他在解决方程时经历了**尤里卡时刻**。
idiom

a pain in the neck

令人非常烦的人或事
Meaning
someone or something that is very annoying
Example
That constant noise from the construction site is **a pain in the neck**.
来自建筑工地的持续噪音真让人烦。
idiom

at your breaking point

由于压力而接近失控的边缘
Meaning
to be very close to losing control due to stress
Example
After months of overwork, she was **at her breaking point**.
经过几个月的超时工作后,她已经**接近崩溃的临界点**。
idiom

a diplomatic tightrope

一个非常微妙或危险的外交局势
Meaning
a very delicate or risky diplomatic situation
Example
Managing relations with both rivals is a **diplomatic tightrope**.
与两个对手保持关系是一个**外交钢索**。
idiom

a big mouth

一个说话太多或者揭露秘密的人
Meaning
a person who talks too much or reveals secrets
Example
Don’t tell Jake, he’s **a big mouth**!
不要告诉杰克,他是**一个嘴巴很大的人**!
idiom

a whole new ball game

一个全新或不同的情况;改变事情处理方式的东西。
Meaning
a completely new or different situation; something that changes the way things are done.
Example
Starting a business from scratch is **a whole new ball game**.
从头开始创业是**一个全新的挑战**。
B1 idiom

all ears

非常专心地听
Meaning
Listening very attentively
Example
When the teacher started explaining the concept, the students were all ears.
当老师开始解释这个概念时,学生们都非常专心地听着。
idiom

a fool and his money are soon parted

那些不小心管理自己钱财的人,很快就会失去它
Meaning
people who are careless with their money will lose it quickly
Example
He spent all his money on useless gadgets; **a fool and his money are soon parted**.
他把所有的钱都花在了无用的电子产品上;**傻瓜和他的钱很快就会分开**。
idiom

act on

根据信息采取行动
Meaning
to respond to information with action
Example
We need to **act on** the survey results immediately.
我们需要立即对调查结果采取行动。
idiom

a kind heart

一个慷慨而关心他人的人
Meaning
a person who is generous and caring
Example
Her **kind heart** is what makes her loved by everyone.
她的**善良的心**使她深受大家喜爱。
idiom

as free as a bird

完全自由;无忧无虑
Meaning
completely free; without worries
Example
After the exams, I felt **as free as a bird**.
考试后,我感到完全自由。
idiom

a game changer

完全改变事物处理方式的东西
Meaning
something that completely changes the way things are done
Example
The new technology is a **game changer** for the healthcare industry.
新技术是医疗行业的变革者。
idiom

algorithmic bias

算法对某些数据或结果的系统性偏好,通常是无意的。
Meaning
the systematic favoritism towards certain data or outcomes by an algorithm, often unintentionally.
Example
The development team worked to eliminate **algorithmic bias** in the AI model.
开发团队致力于消除AI模型中的**算法偏见**。
idiom

a tough call

nán de juédìng
Meaning
a difficult decision to make
Example
Choosing between the two offers was **a tough call**.
Zài liǎng gè tíyì zhī jiān xuǎnzé shì nán de juédìng.
idiom

at each other’s throats

处于持续冲突或打斗中
Meaning
to be in constant conflict or fighting
Example
The two brothers were **at each other’s throats** all day.
那两个兄弟整天都在互相争斗。
idiom

A Catch-22

一种因为互相矛盾的条件而无法摆脱的困境。
Meaning
A dilemma or difficult situation from which there is no escape because of mutually conflicting conditions.
Example
It’s a **Catch-22**—you can’t get a job without experience, but you can’t get experience without a job.
这是一个‘凯奇-22’——没有经验找不到工作,没有工作也得不到经验。
idiom

answer for

对某事负责,并就此向他人解释
Meaning
to be responsible for something and answer to others about it
Example
She had to **answer for** the mistakes made by her team.
她必须为她团队所犯的错误**负责**。
idiom

answer for something

对发生的坏事负责
Meaning
to be responsible for something bad that happens
Example
You’ll have to **answer for your actions** if things go wrong.
如果事情出了问题,你必须为你的行为负责。
idiom

a taste of your own medicine

体验你曾经给别人带来的不愉快
Meaning
to experience the same unpleasantness you caused to others
Example
He was rude to everyone, but now he’s getting **a taste of his own medicine**.
他曾经对每个人都很粗鲁,但现在他正在体验**他自己的药**。
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

a happy camper

一个对生活感到满足和满足的人
Meaning
a person who is content and satisfied with life
Example
After getting the job, he’s been **a happy camper**.
得到这份工作后,他一直是一个**快乐的露营者**。
idiom

ahead of the pack

比竞争对手更成功
Meaning
to be more successful than competitors
Example
Her innovative ideas always keep her **ahead of the pack**.
她的创新想法总是让她保持在竞争对手之前。
idiom

a stepping stone

帮助人进步的事件或经验
Meaning
an event or experience that helps one to progress
Example
This internship was **a stepping stone** to my career.
这次实习是我职业生涯的垫脚石。
idiom

after the rain comes the rainbow

好时光跟随坏时光之后而来
Meaning
good times follow bad times
Example
Don’t lose faith; **after the rain comes the rainbow**.
别失去信心; **雨后总会有彩虹**。
idiom

A friend is a treasure

一个真正的朋友是无价和珍贵的。
Meaning
A true friend is invaluable and precious.
Example
I've known her for years, and she's always been there for me; **a friend is a treasure**.
我认识她好多年了,她一直都在我身边;**朋友就是宝藏**。
idiom

a trip down memory lane

回忆过去美好的事情
Meaning
to remember pleasant events from the past
Example
Looking through old photos was **a trip down memory lane**.
看着旧照片是一趟回忆之旅。
idiom

alien invasion

某物的突然到来或压倒性的存在感
Meaning
a sudden arrival or overwhelming presence of something unfamiliar
Example
The mall felt like an **alien invasion** during the sale.
商场在促销期间感觉就像是**外星人入侵**。
idiom

a heart of steel

一个情感上坚强且不屈的人
Meaning
someone who is emotionally strong and unyielding
Example
Despite all the challenges, he handled everything with **a heart of steel**.
尽管面临所有挑战,他以**铁一般的心脏**应对了一切。
idiom

a bitter pill to swallow

一个难以接受的不愉快事实或情况
Meaning
an unpleasant fact or situation to accept
Example
Losing the championship was **a bitter pill to swallow** for the team.
输掉冠军对团队来说是一个难以接受的事实。
idiom

a man of his word

一个信守诺言的人
Meaning
a person who keeps their promises
Example
He’s **a man of his word**, you can trust him.
他是一个信守诺言的人,你可以信任他。
idiom

a helping hand

帮助或协助他人的人
Meaning
someone who helps or assists others
Example
She offered **a helping hand** to the new student in class.
她为班级里的新学生提供了**一只援助之手**。
idiom

a figure of speech

一种以非字面意义用于强调或效果的短语
Meaning
a phrase used in a non-literal way for effect or emphasis
Example
When he said he could eat a horse, it was just **a figure of speech**.
当他说他能吃一匹马时,这只是**一种修辞手法**
idiom

a quick study

一个快速学习的人
Meaning
someone who learns new things very fast
Example
She’s **a quick study** and mastered the topic in a day.
她很快学习并在一天内掌握了这个话题。
idiom

adapt to new surroundings

适应新的环境或情况
Meaning
to adjust to a new environment or situation
Example
After moving to a new city, it took her some time to **adapt to new surroundings**.
搬到新城市后,她花了一些时间才**适应新的环境**。
idiom

adapt to the changing times

适应新的条件或环境
Meaning
to adjust to new conditions or circumstances
Example
In order to survive in this fast-paced world, you must **adapt to the changing times**.
为了在这个快节奏的世界中生存,你必须**适应变化的时代**。
idiom

A leap of faith

即使没有证据或证明,仍然相信某事。
Meaning
Believing in something even without evidence or proof.
Example
When she took the job offer, it was truly **a leap of faith**.
当她接受工作邀请时,真的 **信念的一跃**。
idiom

at the end of the rope

没有更多的耐心或力量来应对问题
Meaning
to have no more patience or strength left to deal with a problem
Example
She’s **at the end of her rope** trying to manage her work and family together.
她在努力兼顾工作和家庭时,已经**筋疲力尽**了。
idiom

an out of this world experience

一种非凡或特殊的经历
Meaning
an extraordinary or exceptional experience
Example
The view from the space station was truly **an out of this world experience**.
从空间站看到的景象真是**一种超凡的经历**。
idiom

a silver lining

在困难情况下的积极方面
Meaning
a positive aspect in a difficult situation
Example
Losing my job was tough, but the **silver lining** was that I found a better one.
失去工作很困难,但**silver lining**是我找到了更好的工作。
idiom

a roof over your head

一个住的地方;一个避难所
Meaning
a place to live; a shelter
Example
At least we have **a roof over our heads**.
至少我们有一个地方住。
idiom

a well-oiled machine

一个高效且顺畅协作的小组
Meaning
a group that works efficiently and smoothly together
Example
Our team worked like **a well-oiled machine** during the event.
我们的团队在活动中像**一台润滑良好的机器**一样工作。
idiom

as happy as a clam

感到完全快乐和满足
Meaning
feeling completely happy and content
Example
After a long vacation, he was **as happy as a clam**.
长假之后,他感到非常快乐。
idiom

a storybook ending

一个完美或幸福的结局,就像童话故事一样
Meaning
a perfect or happy ending, like in a fairy tale
Example
Their wedding was a true **storybook ending**.
他们的婚礼真是一个童话般的结局。
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

a global village

由于科技和通信,世界被视为一个单一的社区
Meaning
the world considered as a single community due to technology and communication
Example
The internet has turned the world into **a global village**.
互联网把世界变成了一个全球村。
idiom

a light bulb moment

突然的灵感或顿悟的时刻
Meaning
a moment of sudden inspiration or realization
Example
She had **a light bulb moment** during the meeting.
她在会议期间突然灵光一现。
idiom

at sixes and sevens

处于混乱或无序的状态
Meaning
in a state of confusion or disorder
Example
After the renovation, the office was **at sixes and sevens** for weeks.
翻新后,办公室有好几个星期都处于 **混乱或无序的状态**。
idiom

a masterpiece in the making

具有成为杰出的巨大潜力的事物
Meaning
something that has great potential to become exceptional
Example
Her new sculpture is **a masterpiece in the making**.
她的新雕塑是**一个正在酝酿的杰作**。
idiom

a bug in the system

程序或系统中的问题或错误
Meaning
a problem or error in a program or system
Example
There seems to be **a bug in the system** causing slow performance.
似乎 **系统中有一个bug**,导致性能缓慢。
idiom

At the end of one’s rope

累到无法再应对任何事。
Meaning
To be so tired or frustrated that you can’t deal with anything more.
Example
After working nonstop for weeks, I was **at the end of my rope**.
连续几个星期不停地工作后,我已经**筋疲力尽**。
idiom

adapt to new circumstances

适应新的情况或变化
Meaning
to adjust oneself to new situations or changes
Example
In order to survive in the changing world, we need to **adapt to new circumstances**.
为了在不断变化的世界中生存,我们需要**适应新的情况**。
idiom

a loose cannon

一个行为不可预测且可能引起问题的人。
Meaning
A person who behaves unpredictably and may cause problems.
Example
Be careful with him — he’s **a loose cannon**.
小心他——他是一个不可预测的人。
idiom

a chapter of one’s life

人生中的一个阶段或时期
Meaning
a period or stage in someone’s life
Example
Leaving college was the end of an important **chapter of her life**.
离开大学是她人生中一个重要篇章的结束。
idiom

a blank slate

一个没有任何先前知识或经验的人
Meaning
a person with no prior knowledge or experience
Example
He came to the school like a **blank slate**.
他像一张**空白纸**一样来到学校。
idiom

aim high

设定具有挑战性和雄心的目标
Meaning
to set challenging and ambitious goals
Example
Always **aim high** if you want to achieve greatness.
如果你想取得伟大成就,始终要**志存高远**。
idiom

artificial instinct

机器做出看似自然或类似人类的决策的能力
Meaning
a machine’s ability to make decisions that seem natural or human-like
Example
The new model shows a kind of **artificial instinct** while driving.
新模型在驾驶时展示了一种**人工本能**。
idiom

An ear to the ground

意识到周围发生的事情。
Meaning
To be aware of what is happening around you.
Example
If you want to succeed in business, always keep **an ear to the ground**.
如果你想在生意上成功,始终保持**耳朵贴近地面**。
idiom

a full plate

非常忙或有很多事情要做
Meaning
to be very busy or have many things to do
Example
I can’t join the trip now; I’ve got **a full plate**.
我现在不能参加旅行;我有**很多事情要做**。
idiom

A pretty picture

一个愉快或理想的情况;通常用于讽刺
Meaning
A pleasant or ideal situation; often used ironically
Example
This isn’t **a pretty picture** – we need to fix these problems.
这不是**一幅美丽的画面** – 我们需要解决这些问题。
idiom

at the crossroads

面临一个决定或选择
Meaning
facing a decision or choice
Example
I’m **at the crossroads** in my career right now.
我现在正处于职业生涯的十字路口。
idiom

Airhead

一个傻乎乎或愚蠢的人。
Meaning
A silly or foolish person.
Example
Don't be such an **airhead**, pay attention!
不要那么傻,集中注意力!
idiom

a rolling stone gathers no moss

一个不断前进和探索的人避免了无聊或停滞
Meaning
a person who keeps moving and exploring avoids boredom or stagnation
Example
**A rolling stone gathers no moss**, and he’s always on the move.
滚动的石头不会长苔藓,他总是在移动。
idiom

a barrel of laughs

某人或某事非常有趣或娱乐性强
Meaning
someone or something very funny or entertaining
Example
The new comedy show is **a barrel of laughs**.
新的喜剧节目非常有趣。
idiom

answer the call

回应责任或机会
Meaning
to respond to a responsibility or opportunity
Example
He was ready to **answer the call** and take charge of the project.
他准备好**回应挑战**并接管该项目。
idiom

a man of integrity

一个诚实且道德上正直的人
Meaning
someone who is honest and morally upright
Example
He is known as **a man of integrity** in the business world.
他在商业世界中被称为一个有正直的人。
idiom

as thick as two short planks

非常愚蠢或迟钝
Meaning
very stupid or slow-witted
Example
He’s **as thick as two short planks**, bless him.
他**像两块短木板一样愚蠢**,祝福他。
idiom

Air time

在电视或广播中播放的时间
Meaning
The amount of time something is broadcast on TV or radio
Example
The charity event got a lot of **air time** on local stations.
慈善活动在当地电台获得了很多空中时间。
idiom

a chain is only as strong as its weakest link

一个团体的力量取决于最弱的成员
Meaning
the strength of a group depends on the weakest member
Example
In any team, **a chain is only as strong as its weakest link**.
在任何团队中,**链条的强度取决于最弱的环节**。
idiom

A peaceful mind is a happy mind

心境的平静带来幸福和满足。
Meaning
Mental calmness leads to happiness and contentment.
Example
She believes that **a peaceful mind is a happy mind**.
她认为**平静的心灵是幸福的心灵**。
idiom

A hard row to hoe

一个困难的任务或挑战。
Meaning
A difficult task or challenge.
Example
Getting this project done on time is going to be **a hard row to hoe**.
按时完成这个项目将是 **一个困难的任务**。
idiom

A flash of inspiration

突如其来的创意
Meaning
A sudden creative idea
Example
He had **a flash of inspiration** while working late at night.
他在深夜工作时有了**灵感的闪现**。
idiom

a dark horse

一个在重要时刻之前保守技能或计划的人
Meaning
a person who keeps their skills or plans secret until an important moment
Example
Nobody expected her to win; she was **a dark horse**.
没有人预料到她会赢;她是**一匹黑马**。
idiom

a heavy heart

深深的悲伤或痛苦的感觉
Meaning
a feeling of deep sadness or sorrow
Example
She left her hometown with **a heavy heart**.
她带着沉重的心情离开了她的家乡。
idiom

Above reproach

完全诚实且没有缺陷。
Meaning
Completely honest and without fault.
Example
Her integrity is **above reproach**.
她的诚信无可挑剔。
idiom

a little bird told me

有人悄悄告诉我某些事情
Meaning
someone told me something secretly
Example
A **little bird told me** that you got a new job.
一只**小鸟告诉我**你找到了新工作。
idiom

anchors aweigh

准备出发或开始一段旅程。
Meaning
Ready to depart or begin a journey.
Example
With our bags packed, it’s **anchors aweigh** for the road trip!
我们的行李已经打包好,**锚起航**,准备开始公路旅行!
idiom

a fine line

两者之间的差异非常小
Meaning
a very small difference between two things
Example
There’s **a fine line** between genius and madness in art.
在艺术中,天才和疯狂之间有**一条细线**。
idiom

ace a test

在考试中表现极好
Meaning
to do extremely well on a test
Example
He studied hard and managed to **ace the test**.
他努力学习,并成功地 **通过了考试**。
idiom

as easy as ABC

非常容易做或理解
Meaning
very easy to do or understand
Example
For him, solving math problems is **as easy as ABC**.
对他来说,解决数学问题非常容易。
idiom

a mind like a sieve

记忆力非常差
Meaning
to have a very bad memory
Example
He forgets everything; he has **a mind like a sieve**.
他什么都忘了;他的记忆力像筛子一样。
idiom

a weight off one's shoulders

解决问题或负担后的轻松感觉
Meaning
a feeling of relief after a problem or burden is resolved
Example
When she finished the project, it felt like a **weight off her shoulders**.
当她完成项目时,她感觉像肩上的重担被卸下了一样。
idiom

ace the test

在考试或任务中表现出色
Meaning
to perform extremely well on an exam or task
Example
She **aced the test** and got the highest score.
她**考试通过**并获得了最高分。
idiom

a match made in heaven

天造地设的一对,非常适合彼此
Meaning
a perfect couple, very well suited for each other
Example
They are truly **a match made in heaven**.
他们真的是天造地设的一对。
idiom

add color to

使某事变得更加有趣或生动
Meaning
to make something more interesting or lively
Example
The teacher’s stories **added color to** the history lesson.
老师的故事**为历史课增添了色彩**。
idiom

a glimpse into the future

对未来可能是怎样的一个小小暗示
Meaning
a small indication of what the future might be like
Example
This technology gives us **a glimpse into the future**.
这项技术给我们一个未来的瞥见。
idiom

a problem shared is a problem halved

讨论问题让它更容易解决
Meaning
discussing a problem makes it easier to solve
Example
Don't hesitate to ask for help. **A problem shared is a problem halved**.
不要犹豫请求帮助。**一个共享的问题是一个减轻的问题**。
idiom

all smiles

非常开心和愉快
Meaning
very happy and cheerful
Example
He was **all smiles** after hearing the compliment.
听到赞美后,他笑容满面。
idiom

a slap on the wrist

一种非常轻微的惩罚
Meaning
a very mild punishment
Example
He got **a slap on the wrist** for such a serious offense.
他因如此严重的罪行而得到了**一种非常轻微的惩罚**。
idiom

alive and kicking

仍然健康,充满活力
Meaning
still healthy and full of life
Example
My grandmother is 90 but still **alive and kicking**.
我的祖母已经90岁了,但仍然**充满活力**。
idiom

a drop in the ocean

与所需相比非常少的量
Meaning
a very small amount compared to what is needed
Example
The money they raised was just **a drop in the ocean** compared to the total cost.
他们筹集的钱与总成本相比只是大海中的一滴水。
idiom

against the ropes

处于困难的情况或接近失败
Meaning
in a difficult situation or near defeat
Example
The company was **against the ropes**, but it managed to recover.
公司陷入困境,但设法恢复了。
idiom

a light at the end of the tunnel

表示情况很快会有所改善的迹象;在困难情况下的希望
Meaning
a sign that a situation will improve soon; hope in a difficult situation
Example
After months of hard work, she finally saw **a light at the end of the tunnel**.
经过几个月的努力工作后,她终于看到了**隧道尽头的光**。
idiom

A clear conscience is a soft pillow

当你诚实时,你会平静地睡觉,没有愧疚感。
Meaning
When you live honestly, you sleep peacefully without guilt.
Example
After telling the truth, he had a peaceful night’s sleep because **a clear conscience is a soft pillow**.
告诉真相后,他度过了一个安静的夜晚,因为**清晰的良心是一个柔软的枕头**。
idiom

a snowball effect

一种情况,其中某事物的规模或重要性以越来越快的速度增加
Meaning
a situation in which something increases in size or importance at a faster and faster rate
Example
The more followers she got, the more famous she became, creating **a snowball effect**.
她的追随者越多,她就越有名,形成了一个雪球效应。
idiom

a shoulder to lean on

给予你支持和安慰的人
Meaning
someone to give you support and comfort
Example
She’s always been **a shoulder to lean on** for me.
她一直是我可以依靠的**肩膀**。
idiom

a miscarriage of justice

法院作出的错误或不公平的决定
Meaning
a wrong or unfair decision by a court
Example
The innocent man’s imprisonment was **a miscarriage of justice**.
无辜男子的监禁是**司法的不公**。
idiom

a walking encyclopedia

一个知道很多关于许多主题的人
Meaning
a person who knows a lot about many subjects
Example
Ask him anything about history—he’s **a walking encyclopedia**.
问他任何关于历史的事情——他是**一本行走的百科全书**。
idiom

A rising tide lifts all boats

当经济改善时,每个人都会在某种程度上受益。
Meaning
When the economy improves, everyone benefits to some extent.
Example
When the new policies boosted trade, people said that **a rising tide lifts all boats**.
当新政策促进了贸易时,人们说:“水涨船高”。
idiom

A little knowledge is a dangerous thing

了解一点事情可能会导致错误。
Meaning
Knowing a small amount about something can lead to mistakes.
Example
**A little knowledge is a dangerous thing** — don’t try to fix it if you’re not an expert.
**一点知识是一件危险的事** — 如果你不是专家,别尝试修理它。
idiom

an old hand

在某事上非常有经验的人
Meaning
someone very experienced at something
Example
She’s **an old hand** at managing big events.
她是管理大型活动的**老手**。
idiom

a thing of the past

不再存在或发生的事情
Meaning
something that no longer exists or happens
Example
With smartphones, landline phones are **a thing of the past**.
有了智能手机,座机电话成了**过去的事情**。
idiom

As old as the hills

非常古老或古老
Meaning
Very old or ancient
Example
That legend is **as old as the hills**.
那个传说像山丘一样古老。
idiom

a heart-to-heart

一次真诚和开放的对话
Meaning
a sincere and open conversation
Example
We had **a heart-to-heart** about our future plans.
我们就我们的未来计划进行了**一次真诚的对话**。
idiom

at the cutting edge

在一个领域中的最先进位置
Meaning
at the most advanced position in a field
Example
The lab is **at the cutting edge** of medical research.
实验室处于**医学研究的最前沿**。
idiom

A team player

在团队中能与他人合作良好的人。
Meaning
Someone who works well with others in a group.
Example
John is **a team player** who always supports his colleagues.
约翰是一个**团队成员**,总是支持他的同事。
idiom

act your age

表现出与你年龄相符的行为
Meaning
behave in a manner appropriate to your age
Example
Stop being so childish and **act your age**!
别那么幼稚,**要表现得符合你的年龄**!
idiom

algorithmic trading

使用算法在金融市场中实现自动化交易
Meaning
the use of algorithms to automate trading in financial markets
Example
Banks are increasingly using **algorithmic trading** to optimize their investments.
银行越来越多地使用**算法交易**来优化他们的投资。
idiom

a good Samaritan

一個在需要時幫助他人的人
Meaning
a person who helps others in need
Example
A **good Samaritan** helped the injured man on the road.
一個**好撒馬利亞人**幫助了路上受傷的男人。
idiom

algorithm

一组解决问题或执行任务的规则或指令
Meaning
a set of rules or instructions for solving a problem or performing a task
Example
The **algorithm** sorts the data into categories.
**算法** 将数据分类。
idiom

a flash in the pan

一开始看起来有希望但最终失败的东西
Meaning
something that seems promising at first but fails to deliver
Example
The peace talks were just **a flash in the pan**.
和平谈判只是**昙花一现**。
idiom

a penny saved is a penny earned

节省钱就像赚取钱一样有价值
Meaning
saving money is just as valuable as earning it
Example
My grandfather always said, '**a penny saved is a penny earned**.'
我的祖父总是说,'一分钱省下就是一分钱赚到。'