to shoot for the stars
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idiom

to shoot for the stars

瞄准非常雄心勃勃或难以实现的目标
Meaning
to aim for something very ambitious or difficult to achieve
Example
He decided to **shoot for the stars** by applying to the most prestigious universities.
他决定通过申请最负盛名的大学来**瞄准星星**。
idiom

grey matter

智慧; 思考的能力
Meaning
intelligence; the ability to think
Example
Use your **grey matter** to solve the puzzle.
用你的**智慧**来解开谜题。
idiom

zoom out

从更广的角度看待一个情况
Meaning
to look at a situation from a broader perspective
Example
Let’s **zoom out** and review the yearly goals.
让我们**放大视野**，回顾一下年度目标。
idiom

under the gun

在压力下完成或做某事
Meaning
under pressure to perform or complete something
Example
We were **under the gun** to meet the deadline for the report.
我们为了赶报告的截止日期而承受压力。
idiom

put one's foot in one's mouth

说一些尴尬或不合适的话
Meaning
to say something embarrassing or inappropriate
Example
He really **put his foot in his mouth** when he mentioned her ex-boyfriend.
当他提到她的前男友时，他真的是把脚放进了嘴里。
idiom

zone in on

专注于某个特定的事物
Meaning
to focus attention closely on something specific
Example
We need to **zone in on** the main customer problem.
我们需要**专注于**主要的客户问题。
idiom

Too many cooks spoil the broth

当太多人试图管理某件事时，它可能会失败。
Meaning
When too many people try to manage something, it can fail.
Example
If everyone keeps giving their opinion, remember that **too many cooks spoil the broth**.
如果每个人都不断发表意见，请记住，厨师太多会把汤弄糟。
idiom

give someone a leg up

帮助某人改善他们的处境或获得优势
Meaning
to help someone improve their situation or get an advantage
Example
Her mentor **gave her a leg up** in her career.
她的导师在她的职业生涯中**给了她一个提升**。
idiom

mama’s boy

一个对母亲过于依赖的男人
Meaning
a man who is excessively attached to his mother
Example
He’s such a **mama’s boy**, always listening to her advice.
他是个典型的**妈妈的男孩**，总是听从她的建议。
idiom

things are looking up

情况正在改善
Meaning
the situation is improving
Example
After a tough year, **things are looking up** for our business.
经过艰难的一年，**事情正在变好**，我们的生意也开始好转。
idiom

in the dumps

感到伤心或沮丧
Meaning
feeling sad or depressed
Example
After the argument, he was really **in the dumps**.
争论之后，他真的很沮丧。
idiom

to machine learn

在没有人工干预的情况下自动从数据中学习
Meaning
to learn automatically from data without human intervention
Example
The system continues **to machine learn** as more data is fed into it.
随着更多数据的输入，系统继续**机器学习**。
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

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

after the storm comes the calm

风暴之后是平静
Meaning
peace follows a period of trouble
Example
Stay patient; **after the storm comes the calm**.
保持耐心；**风暴过后，平静来临**。
idiom

sort through

通过分开所需和不需要的物品进行组织
Meaning
to organize by separating what is needed from what is not
Example
Let’s **sort through** the survey responses this afternoon.
今天下午我们整理调查问卷的回复。
idiom

My two cents

我的个人意见或建议
Meaning
My personal opinion or suggestion
Example
That’s just my two cents, but I think we should wait.
这只是我的意见，但我认为我们应该等待。
idiom

come down hard on

严厉地惩罚或批评某人
Meaning
to punish or criticize someone severely
Example
The company **came down hard on** employees who broke the rules.
公司严厉地惩罚了违反规则的员工。
idiom

black hat

一个具有恶意意图的黑客
Meaning
a hacker with malicious intent
Example
**Black hats** often exploit vulnerabilities for personal gain.
**Black hats** 常常利用漏洞来谋取个人利益。
idiom

Run the risk

做某事可能会导致损失或危险。
Meaning
To do something that may result in loss or danger.
Example
You’ll **run the risk** of losing everything if you lie.
如果你撒谎，你将面临失去一切的风险。
idiom

chew someone out

生气地责骂或批评某人
Meaning
to angrily scold or criticize someone
Example
The coach **chewed out** the team for their poor performance.
教练因为球队糟糕的表现而责骂了球队。
idiom

bite off more than you can chew

承担超出自己能力范围的任务
Meaning
to take on a task that is too big to handle
Example
I think I **bit off more than I can chew** by agreeing to manage three projects at once.
我觉得我同意同时管理三个项目是承担了超出自己能力范围的任务。
idiom

A giant leap

一个重要的进步或成就。
Meaning
A significant advancement or achievement.
Example
Landing on the moon was **a giant leap** for mankind.
登月是人类的一大飞跃。
idiom

make a fresh start

以一种新的方式重新开始某事
Meaning
to start something again in a new way
Example
After the failure, she decided to **make a fresh start**.
在失败后，她决定**重新开始**。
idiom

influencer marketing

通过社交媒体上的有影响力的人来推广产品
Meaning
promoting products through influential people on social media
Example
Many brands invest in **influencer marketing** to reach younger audiences.
许多品牌投资于**网红营销**，以接触更年轻的观众。
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

hold back on

推迟或减少做某事
Meaning
to delay or reduce doing something
Example
Let’s **hold back on** hiring until sales improve.
让我们推迟招聘，直到销售有所改善。
idiom

the powers that be

那些拥有权力或控制的人或组织
Meaning
people or organizations who hold authority or control
Example
The decision depends on **the powers that be**.
决策取决于那些拥有权力的人。
idiom

be thick as thieves

成为非常亲密的朋友
Meaning
to be very close friends
Example
Those two have been **thick as thieves** since childhood.
这两个人从小就是**非常亲密的朋友**。
idiom

table the discussion

将讨论推迟到稍后
Meaning
to postpone discussing something until later
Example
They decided to **table the discussion** until next week.
他们决定将讨论推迟到下周。
idiom

yellow-bellied

非常胆小
Meaning
very cowardly
Example
He’s too **yellow-bellied** to stand up for himself.
他太胆小，无法为自己站出来。
idiom

get along like a house on fire

很快成为好朋友并享受彼此的陪伴。
Meaning
To quickly become good friends and enjoy each other’s company.
Example
They met last week and **got along like a house on fire**.
他们上周见面，很快就成为了好朋友。
idiom

plug away

坚持不懈地做某事
Meaning
to keep working steadily on something
Example
Keep **plugging away** at the draft and it will improve.
继续修改草稿，它会有所改进。
idiom

snap out of it

停止难过并开始感觉好一点
Meaning
to stop being upset and start feeling better
Example
You need to **snap out of it** and start thinking positively.
你需要振作起来并开始积极思考。
idiom

school someone in something

教某人一门学科或技能
Meaning
to teach someone about a subject or skill
Example
He **schooled me in** the basics of computer programming.
他教了我计算机编程的基础。
idiom

leaf through

随意翻阅书或杂志的页面
Meaning
to turn the pages of a book or magazine casually
Example
He likes to **leaf through** catalogs during lunch.
他喜欢在午餐时翻阅目录。
idiom

believe you’re good enough

接受你是有能力和值得的人
Meaning
to accept that you are capable and worthy
Example
To overcome fear, you must **believe you’re good enough**.
要克服恐惧，你必须相信自己足够好。
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

two peas in a pod

两个非常相似或亲密的人
Meaning
two people who are very similar or close
Example
My sister and I are **like two peas in a pod**.
我和我的妹妹就像两个豌豆一样。
idiom

sour grapes

假装不喜欢你得不到的东西
Meaning
pretending to dislike something you can’t have
Example
His comments about the award being unfair are just **sour grapes**.
他关于奖项不公平的评论只是**酸葡萄**。
idiom

Ask the right questions

提出正确的问题以获得理解。
Meaning
To inquire wisely to gain understanding.
Example
Good researchers always **ask the right questions**.
好的研究者总是问对问题。
idiom

to shoot for the moon

瞄准一个困难或雄心勃勃的目标
Meaning
to aim for a difficult or ambitious goal
Example
He’s always **shooting for the moon**, trying to achieve impossible goals.
他总是**瞄准月亮**，试图实现不可能的目标。
idiom

have a chip on your shoulder

因过去的事情而生气或怀恨
Meaning
to be angry or resentful about something from the past
Example
He **has a chip on his shoulder** about being rejected.
他因为被拒绝而心怀怨恨。
idiom

fail to plan is plan to fail

没有适当的计划，失败是不可避免的
Meaning
without proper planning, failure is inevitable
Example
**Failing to plan is planning to fail**, so prepare early.
失败就是计划失败，因此要提前准备。
idiom

cut a deal

迅速达成商业协议
Meaning
to reach a business agreement quickly
Example
They **cut a deal** to save both companies money.
他们**达成了协议**，为两家公司节省资金。
idiom

beat someone to the punch

在别人之前做某事
Meaning
to do something before someone else does
Example
He **beat me to the punch** by applying for the job first.
他通过首先申请这份工作**抢先一步**。
idiom

stick to your guns

即使在压力下也坚持自己的信念或决定
Meaning
to remain firm in your beliefs or decisions even under pressure
Example
He **stuck to his guns** even when others doubted him.
他**坚持自己的决定**，即使别人怀疑他。
idiom

cut through the noise

在竞争中脱颖而出；尽管有干扰，依然能够引起注意
Meaning
to stand out from the competition; to be noticed despite distractions
Example
Our campaign needs to **cut through the noise** and grab people’s attention.
我们的营销需要在竞争中脱颖而出，吸引人们的注意。
idiom

plant the seed

巧妙地引入一个想法，以便稍后影响某人
Meaning
to introduce an idea subtly to influence someone later
Example
He **planted the seed** for the project during the discussion.
他在讨论中为项目**种下种子**。
idiom

blue chip

一个历史悠久且财务稳健的公司
Meaning
a well-established and financially sound company
Example
He prefers to invest in **blue chip** stocks for stability.
他更喜欢投资**蓝筹**股票以获得稳定性。
idiom

throw oneself at someone's mercy

请求原谅并希望得到善意
Meaning
to ask for forgiveness and hope for kindness
Example
She **threw herself at the teacher’s mercy** after missing the deadline.
她在错过截止日期后，**向老师请求宽恕**。
idiom

settle the score

报复或解决过去的冲突
Meaning
to take revenge or resolve a conflict from the past
Example
He wanted to **settle the score** after last year's argument.
他想在去年的争执后复仇。
idiom

lighten up

别那么严肃或紧张
Meaning
to stop being so serious or stressed
Example
Come on, **lighten up**! It’s just a joke.
来吧，放轻松！这只是个玩笑。
idiom

nurture talent

帮助某人的技能和能力成长与发展
Meaning
to help someone's skills and abilities grow and develop
Example
A great mentor knows how to **nurture talent** and help their mentees grow.
一个伟大的导师知道如何**培育人才**并帮助他们的学员成长。
idiom

the human touch

一种个人或情感的元素，技术中缺少的
Meaning
a personal or emotional element that technology lacks
Example
Even with AI, customers still appreciate **the human touch** in service.
即使有 AI，客户仍然感激 **人类的手** 在服务中。
idiom

in harmony

和平与和谐地一起生活或工作
Meaning
living or working together in peace and agreement
Example
They work **in harmony** to create a peaceful community.
他们**和谐地**工作以创造一个和平的社区。
idiom

rock the boat

引发问题或扰乱稳定的局面
Meaning
to cause problems or upset a stable situation
Example
Everything is going well, so let's not **rock the boat** with unnecessary changes.
一切都很好，所以我们不要用不必要的变化来**摇晃船**。
idiom

expand one's horizons

增加一个人的知识或经验
Meaning
to increase one’s knowledge or experience
Example
Traveling abroad can really help you **expand your horizons**.
出国旅行确实可以帮助你**扩展你的视野**。
idiom

hit the target audience

用信息或产品触达目标受众
Meaning
to reach the intended group of people with a message or product
Example
The new campaign failed to **hit the target audience** effectively.
新的宣传活动未能有效地**触达目标受众**。
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

Speak the truth and shame the devil

即使这可能会造成麻烦或不适，也要说真话。
Meaning
Speak the truth even if it may cause trouble or discomfort.
Example
She always believes that **speak the truth and shame the devil** is the right way.
她总是认为**说真话，羞辱魔鬼**是正确的方式。
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

hear it through the grapevine

听到谣言或非正式新闻
Meaning
to hear a rumor or unofficial news
Example
I **heard it through the grapevine** that they broke up.
我听说他们分手了。
idiom

out of your league

太好或太强大，无法竞争
Meaning
too good or powerful to compete with
Example
That company is **out of our league** in terms of resources.
这家公司在资源方面超出了我们的竞争范围
idiom

feeling blue

感到悲伤或沮丧
Meaning
to feel sad or depressed
Example
She’s been **feeling blue** all day.
她整天都很伤心。
idiom

ground control

管理情况的权威或人们
Meaning
authority or people managing a situation
Example
In this project, Sarah is **ground control**.
在这个项目中，Sarah 是控制中心。
idiom

run a tight ship

有效且严格地管理一个组织或团队
Meaning
to manage an organization or group efficiently and strictly
Example
The manager **runs a tight ship**, and everyone follows the rules.
经理**严格管理团队**，每个人都遵守规则。
idiom

artificial empathy

人工智能模仿或模拟人类情感的能力
Meaning
AI's ability to simulate or mimic human emotions
Example
The robot therapist shows **artificial empathy** during sessions.
机器人治疗师在会话中展示**人工同理心**。
idiom

Tell the truth

说出真相，而不是撒谎。
Meaning
To say what is true instead of lying.
Example
Please **tell the truth**, even if it hurts.
请**说实话**，即使这会伤害。
idiom

Keep it under your hat

保持某事秘密。
Meaning
To keep something secret.
Example
I’ll tell you a secret, but **keep it under your hat**.
我会告诉你一个秘密，但**保密**。
idiom

fall on deaf ears

当建议或投诉被忽视时
Meaning
when advice or complaints are ignored
Example
His apology **fell on deaf ears**.
他的道歉**落入耳朵里**。
idiom

go through the roof

迅速上涨；变得非常高
Meaning
to increase rapidly; to become very high
Example
The prices of housing have **gone through the roof** recently.
最近房价**飙升**了。
idiom

break down in tears

突然开始哭泣
Meaning
to start crying suddenly
Example
She **broke down in tears** after hearing the sad story.
她在听到悲伤的故事后**突然哭了起来**。
idiom

wired to learn

天生被设计来获取知识或技能
Meaning
naturally designed to acquire knowledge or skills
Example
Humans are **wired to learn**, just like AI systems.
人类天生就像人工智能系统一样被设计来学习。
idiom

easy money

用很少的努力赚到的钱
Meaning
money earned with little effort
Example
He thought gambling was **easy money**, but he lost everything.
他以为赌博是**轻松赚的钱**，但他失去了所有。
idiom

shake like a leaf

因害怕或紧张而颤抖
Meaning
to tremble with fear or nervousness
Example
She was **shaking like a leaf** before her first flight.
她在第一次飞行前**像叶子一样发抖**。
idiom

green-eyed jealousy

强烈的嫉妒情感
Meaning
strong feeling of envy
Example
**Green-eyed jealousy** can ruin even the best relationships.
**绿眼睛的嫉妒**甚至可以摧毁最好的关系。
idiom

sweeten the deal

使一个提议更有吸引力
Meaning
to make an offer more attractive
Example
They decided to **sweeten the deal** by offering free shipping.
他们决定通过提供免费送货来**让交易更诱人**。
idiom

a bundle of joy

某人或某物带来巨大的幸福
Meaning
someone or something that brings great happiness
Example
Their new baby is **a bundle of joy** for the family.
他们的新宝宝是家庭的**快乐源泉**。
idiom

down on one’s luck

经历一段坏运气
Meaning
to be experiencing a period of bad luck
Example
He’s **down on his luck** and can’t find a job.
他正在经历一段坏运气，找不到工作。
idiom

blow one’s top

突然变得非常生气
Meaning
to suddenly become very angry
Example
He **blew his top** when he saw the mistake.
当他看到错误时，他非常生气。
idiom

double check

再次验证某事以确保准确性
Meaning
to verify something again for accuracy
Example
Always **double check** the numbers before submitting.
在提交之前始终**双重检查**数字。
idiom

blind faith

不加质疑地信任
Meaning
trusting without questioning
Example
Having **blind faith** can sometimes lead to disappointment.
拥有**盲目信任**有时会导致失望。
idiom

nip it in the bud

在问题变得更糟之前阻止它
Meaning
to stop a problem before it gets worse
Example
We should **nip it in the bud** before it becomes serious.
我们应该在事情变得严重之前阻止它。
idiom

lazy bones

一个懒人
Meaning
a lazy person
Example
Come on, **lazy bones**, get out of bed!
快点，**懒骨头**，起床！
idiom

mind over matter

用意志力克服身体问题
Meaning
the use of willpower to overcome physical problems
Example
Running that marathon was pure **mind over matter**.
跑完那场马拉松完全是**意志战胜身体**。
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

pick up on

注意到或意识到某事
Meaning
to notice or become aware of something
Example
He didn't **pick up on** the subtle hints I was giving.
他没有注意到我给的微妙暗示。
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

a debt of gratitude

对帮助过你的人心存感激的感觉
Meaning
a feeling of being grateful to someone who has helped you
Example
We owe **a debt of gratitude** to our mentors.
我们对我们的导师欠有**一笔感激之债**
idiom

sit at someone’s feet

向一个非常有学问的人学习
Meaning
to learn from someone who is very knowledgeable
Example
Many students wanted to **sit at his feet** and learn from him.
许多学生想要**坐在他的脚下**向他学习。
idiom

to hit the books

努力学习
Meaning
to study intensely
Example
I need to **hit the books** if I want to pass the exam.
如果我想通过考试，我需要**打书**。
idiom

sliding into DMs

在社交媒体上向某人发送私人消息，通常是调情
Meaning
to send a private message to someone on social media, often flirtatiously
Example
He started **sliding into her DMs** after seeing her post.
看到她的帖子后，他开始给她发私信。
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

note down

记下来以便记住
Meaning
to write something so you remember it
Example
Please **note down** the action items before we leave.
请在离开之前**记下**这些行动项目。
idiom

get a second wind

在感到疲劳后获得一阵能量
Meaning
to have a burst of energy after feeling tired
Example
After a short break, she **got a second wind** and finished the race.
短暂休息后，她 **重获活力** 并完成了比赛。
idiom

be in the limelight

成为焦点
Meaning
to be the center of attention
Example
The actor was **in the limelight** after his award win.
演员在获奖后成为焦点。
idiom

Make a move

采取行动或开始做某事
Meaning
to take action or start doing something
Example
If you want success, it’s time to **make a move**.
如果你想要成功，现在是采取行动的时候了。
idiom

fear of the unknown

对未知事物的焦虑
Meaning
anxiety about things that are unfamiliar or uncertain
Example
Many people avoid change because of their **fear of the unknown**.
许多人因为他们的**对未知的恐惧**而避免变化。
idiom

take the pressure off

让紧张的情况变得轻松一些
Meaning
to make a stressful situation easier
Example
Hiring an assistant really **took the pressure off** me.
雇一个助理真的让我减轻了压力。
idiom

artificial intelligence

机器中人类智能的模拟，编程使其能够思考和学习。
Meaning
The simulation of human intelligence in machines that are programmed to think and learn.
Example
The company has invested heavily in **artificial intelligence** to enhance automation.
公司已经在**人工智能**方面进行了大量投资，以增强自动化。
idiom

sorry sight

看起来可怜或令人遗憾的东西或人
Meaning
something or someone that looks pitiful or regrettable
Example
After the storm, the park was a **sorry sight**.
暴风雨过后，公园的景象令人心酸。
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

digital brainchild

通过数字或人工智能技术创建的产品或想法
Meaning
a product or idea created using digital or AI technology
Example
ChatGPT is the **digital brainchild** of OpenAI.
ChatGPT 是 OpenAI 的 **digital brainchild**。
idiom

roll with laughter

uncontrollably 大笑
Meaning
to laugh uncontrollably
Example
The comedian made the whole audience **roll with laughter**.
喜剧演员让全体观众不受控制的笑了。
idiom

take a rain check

拒绝一个提议，但建议另择时间
Meaning
to decline an offer but suggest doing it another time
Example
Can I **take a rain check** on dinner? I am busy tonight.
我可以**推迟晚餐**吗？我今晚很忙。
idiom

roll the credits

正式完成某事
Meaning
to finish something officially
Example
After the final announcement, they **rolled the credits** on the project.
在最后的公告之后，他们在项目上滚动了字幕。
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

silver bullet

解决复杂问题的简单完美方案
Meaning
a simple and perfect solution to a complex problem
Example
There’s no **silver bullet** for data security.
数据安全没有灵丹妙药。
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

key in on

专注于某个特定的事物
Meaning
to give focused attention to something specific
Example
The coach asked the team to **key in on** their defensive mistakes.
教练要求团队**专注于**他们的防守错误。
idiom

ray of sunshine

某人或某物带来幸福
Meaning
someone or something that brings happiness
Example
Her smile is like a **ray of sunshine** on a cloudy day.
她的笑容就像是一个**阳光**在多云的日子里。
idiom

lay aside

暂时放下某物
Meaning
to put something away temporarily
Example
Please **lay aside** your phones during the briefing.
请在会议期间放下手机。
idiom

walk a fine line

在两个艰难的选择或对立的方面之间保持平衡
Meaning
to balance between two difficult choices or opposing sides
Example
The diplomat had to **walk a fine line** between honesty and tact.
这位外交官不得不在诚实和机智之间**走钢丝**。
idiom

in orbit

处于极度兴奋或活跃的状态
Meaning
in a state of great excitement or activity
Example
The team was **in orbit** after the big win.
在大胜之后，团队处于**在轨道上**。
idiom

AI arms race

公司或国家之间在人工智能发展中争夺领导地位的竞争
Meaning
competition among companies or nations to lead in AI development
Example
Big tech companies are engaged in an **AI arms race**.
大型科技公司正在参与一场**AI军备竞赛**。
idiom

penny wise, pound foolish

小心使用少量的钱，但对大量的钱不小心
Meaning
being careful with small amounts of money but careless with large amounts
Example
She refuses to buy a $10 book, but spends $100 on clothes; she's **penny wise, pound foolish**.
她拒绝买一本10美元的书，却在衣服上花100美元；她是**penny wise, pound foolish**。
idiom

play by ear

即兴发挥或随行决定，而不是遵循固定计划
Meaning
to improvise or decide as you go rather than following a fixed plan
Example
We don't have a fixed schedule, so let's just **play it by ear**.
我们没有固定的日程安排，所以就随意处理吧。
idiom

wander off

漫无目的或方向地走
Meaning
to walk away without purpose or direction
Example
The child **wandered off** while we were shopping.
小孩在我们购物的时候**走开**了。
idiom

feather in one’s cap

值得骄傲的成就
Meaning
an achievement to be proud of
Example
Winning the national award was a real **feather in his cap**.
赢得国家奖是他真正值得骄傲的成就。
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。