empty promise
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idiom

empty promise

没有意图遵守的承诺
Meaning
a promise made without the intention to keep it
Example
Politicians often make **empty promises** during elections.
政治家们在选举期间常常做出**空洞的承诺**。
idiom

work hand in hand

与某人紧密而有效地合作
Meaning
to work closely and effectively with someone
Example
The designers and developers **work hand in hand** on the project.
设计师和开发人员在项目中密切合作。
idiom

take one's hat off to

表示对某人的尊敬或钦佩
Meaning
to show respect or admiration for someone
Example
I **take my hat off to** you for handling the situation so calmly.
我对你冷静处理情况表示敬意。
idiom

know something by heart

把某事完全记住
Meaning
to memorize something perfectly
Example
She **knows all the poems by heart**.
她把所有的诗都背得滚瓜烂熟。
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

lost for words

哑口无言，因惊讶或震惊而无法说话
Meaning
unable to speak because of surprise or shock
Example
I was **lost for words** when I saw the results.
当我看到结果时，我无言以对。
idiom

at the end of the day

当一切都考虑到时；最终
Meaning
when everything is considered; ultimately
Example
**At the end of the day**, teamwork solved the problem.
最终，团队合作解决了问题。
idiom

cross that bridge when you come to it

等问题发生时再处理，不要提前
Meaning
to deal with a problem when it happens, not before
Example
We will **cross that bridge when we come to it**.
等到了那一步我们再说。
idiom

raining cats and dogs

下大雨
Meaning
raining very heavily
Example
It's **raining cats and dogs** outside!
外面正在**下倾盆大雨**!
idiom

so far so good

用来表示某项活动到目前为止都很成功
Meaning
used to say that an activity has been successful up to this point
Example
We've finished the first part of the project, and **so far so good**.
我们已经完成了项目的第一部分，到目前为止一切顺利。
idiom

mind-blowing

对某事完全厌倦或恼火
Meaning
extremely surprising or amazing
Example
The view from the mountain was **mind-blowing**.
我厌倦了听他的借口。
idiom

cool off

冷却或冷静
Meaning
to become less hot or less angry
Example
Let the soup **cool off** before serving.
让汤在上桌前冷却。
idiom

get to the root of the problem

发现问题的根本原因
Meaning
to discover the main cause of a problem
Example
We need to **get to the root of the problem** before we can fix it.
我们需要在解决问题之前**找到问题的根本原因**。
idiom

pull ahead

在比赛或竞争中领先
Meaning
to take the lead in a race or competition
Example
She **pulled ahead** in the last minute of the race.
她在比赛的最后一分钟超越了。
idiom

break new ground

做一些创新或开创性的事情
Meaning
to do something innovative or pioneering
Example
Their research **broke new ground** in medical science.
他们的研究在医学科学上开辟了新天地。
idiom

put your faith in

信任或相信某人或某事
Meaning
to trust or believe in someone or something
Example
She decided to **put her faith in** her friends to help her.
她决定**把信任寄托在**她的朋友身上，以帮助她。
idiom

security blanket

让人有安全感或安慰的东西
Meaning
something that gives a sense of safety or comfort
Example
Using a strong password manager is my **security blanket** online.
使用强密码管理器是我在网上的**安全毯**。
idiom

tide over

帮助某人度过困难时期
Meaning
to help someone through a difficult period
Example
A short-term loan will **tide us over** until the invoices are paid.
短期贷款将帮助我们度过账单支付前的难关。
idiom

keep your nose clean

保持远离麻烦；行为得体
Meaning
to stay out of trouble; to behave properly
Example
He’s been **keeping his nose clean** since he got that new job.
自从他得到那份新工作以来，他一直保持远离麻烦。
idiom

crossed wires

两个人之间的误会
Meaning
a misunderstanding between two people
Example
We must have **crossed wires** about the meeting time.
我们可能在会议时间上产生了误会。
idiom

steer clear of

避开某人或某事
Meaning
to avoid someone or something
Example
You should **steer clear of** that street after dark.
天黑以后你应该避开那条街。
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

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

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

success is earned, not given

成功来自于努力工作，而非运气
Meaning
success comes from hard work, not by chance
Example
Remember, **success is earned, not given**, so work hard every day.
记住，**成功是通过努力获得的，而不是天赐的**，因此每天都要努力工作。
idiom

change of guard

领导或权力的更替
Meaning
a change in leadership or authority
Example
There has been a **change of guard** in the ruling party.
在执政党发生了**换防**。
idiom

a snowball's chance in hell

完全没有机会
Meaning
no chance at all
Example
He has **a snowball's chance in hell** of winning the lottery.
他没有赢得彩票的机会。
idiom

carry a torch for someone

继续爱一个不爱你的人
Meaning
to continue loving someone who doesn’t love you back
Example
He’s still **carrying a torch for** his ex-girlfriend.
他仍然爱着他的前女友。
idiom

take the time to listen

努力去理解或关心他人的感受
Meaning
to make an effort to understand or care about someone else's feelings
Example
Sometimes, all we need is to **take the time to listen** to others' problems.
有时候，我们只需要**花时间听听**他人的问题。
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

jump the shark

当某事物的质量或受欢迎程度开始下降时
Meaning
when something begins to decline in quality or popularity
Example
The show **jumped the shark** after season five.
这个节目在第五季之后**跳过了鲨鱼**。
idiom

break the problem down

将复杂的问题分解成较小、更易管理的部分
Meaning
to divide a complex problem into smaller, more manageable parts
Example
Let's **break the problem down** into smaller steps.
让我们把问题分解成较小的步骤
idiom

a breakthrough

在科学或研究中取得的重要发现或成就
Meaning
a significant discovery or achievement in science or research
Example
The team made **a breakthrough** in cancer research.
团队在癌症研究中取得了突破。
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

Flying high

非常成功或快乐。
Meaning
To be very successful or happy.
Example
After getting promoted, she's **flying high**.
升职后，她非常高兴。
idiom

roll into

平稳过渡到某事
Meaning
to transition smoothly into something
Example
The webinar will **roll into** a live Q&A.
网络研讨会将进入一个现场问答环节。
idiom

house of cards

一个脆弱而可能失败的计划或结构
Meaning
a plan or structure that is weak and likely to fail
Example
Their business model turned out to be a **house of cards**.
他们的商业模式最终被证明是一个纸牌屋。
idiom

set a precedent

为未来的行动建立一个标准或先例
Meaning
to establish a standard or example for future actions
Example
Banning unethical AI systems will **set a precedent** for accountability.
禁止不道德的人工智能系统将为问责制树立一个先例。
idiom

a cut above

比其他人更好；在质量或能力上更强
Meaning
better than others; superior in quality or ability
Example
Her work is **a cut above** the rest.
她的工作 **远超他人**。
idiom

weigh the pros and cons

在做决定之前考虑优缺点
Meaning
to consider the advantages and disadvantages before making a choice
Example
You should **weigh the pros and cons** before quitting your job.
在辞掉工作之前你应该**权衡利弊**。
idiom

beg to differ

礼貌地与某人不同意见
Meaning
to politely disagree with someone
Example
I **beg to differ**, but I think your conclusion is incorrect.
我**礼貌地不同意**，但我认为你的结论是错误的。
idiom

Don’t give up the ship

不要放弃；即使在困难的情况下也要继续努力。
Meaning
Don’t surrender; keep trying even in difficult circumstances.
Example
The battle isn't over yet, so don’t **give up the ship**.
战斗还没有结束，所以不要 **放弃这艘船**。
idiom

pick yourself up

从失败或挫折中恢复
Meaning
to recover from a failure or setback
Example
She failed the first time, but she **picked herself up** and tried again.
她第一次失败了，但她**站起来**并再次尝试。
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

a piece of the puzzle

更大情况或问题的小部分
Meaning
a small part of a larger situation or problem
Example
Finding the right team is just **a piece of the puzzle** in creating a successful business.
找到合适的团队只是创建成功企业中的**一块拼图**。
idiom

make room for

腾出空间
Meaning
to clear space to accommodate something
Example
Let’s **make room for** the new equipment near the window.
让我们在窗户旁腾出空间为新设备。
idiom

to hit the nail on the head

准确描述导致某种情况或问题的原因
Meaning
to describe exactly what is causing a situation or problem
Example
When she pointed out the lack of communication, she really **hit the nail on the head**.
当她指出沟通不足时，她确实 **一针见血**。
idiom

cut back on

减少某事的数量
Meaning
to reduce the amount of something
Example
We’re trying to **cut back on** eating out during the week.
我们正在试图减少一周内外出就餐的次数。
idiom

ease around

小心地移动以避免干扰
Meaning
to move carefully to avoid disturbance
Example
Please **ease around** the cords near the podium.
请在讲台附近 **易斯 阿朗德** 电缆。
idiom

nitpick

在某事中挑剔小的、不重要的错误
Meaning
to find small, unimportant faults in something
Example
Stop **nitpicking** every little mistake I make!
别再对我犯的每个小错误吹毛求疵了！
idiom

to reach for the moon

设定一个困难或看似不可能实现的目标
Meaning
to aim for something that is difficult or seemingly impossible to achieve
Example
He decided to **reach for the moon** and apply for the most competitive university.
他决定 **reach for the moon** 并申请最具竞争力的大学。
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

cut through the red tape

去除官僚障碍或延误
Meaning
to remove bureaucratic obstacles or delays
Example
The new policy helps **cut through the red tape** and speed up approvals.
新政策有助于去除官僚障碍并加快审批。
idiom

caught red-handed

在做错事时被当场抓住
Meaning
to be caught in the act of doing something wrong
Example
The thief was **caught red-handed** stealing the wallet.
小偷在偷钱包时被**当场抓住**。
idiom

Stick with it

即使很困难，也要坚持做。
Meaning
Keep doing something even if it’s hard.
Example
Learning English takes time, so **stick with it**.
学习英语需要时间，所以要坚持下去。
idiom

I feel that

用来表达个人的信念或感觉
Meaning
Used to express a personal belief or feeling
Example
I feel that we could do better next time.
我觉得我们下次可以做得更好。
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

crack under pressure

在压力下失去控制或失败
Meaning
to lose control or fail when under stress
Example
Some people **crack under pressure**, while others thrive.
有些人在压力下崩溃，而其他人则茁壮成长。
idiom

blow someone's cover

揭露某人的秘密身份或隐藏目的
Meaning
to reveal someone's secret identity or hidden purpose
Example
The journalist accidentally **blew the cover** of the undercover agent.
记者不小心揭露了卧底特工的身份。
idiom

like one big happy family

和谐生活或工作在一起的人们
Meaning
people living or working together in harmony
Example
Our office team works **like one big happy family**.
我们的办公室团队**像一个大家庭一样工作**。
idiom

Break the news

告诉某人重要或坏消息。
Meaning
To tell someone important or bad news.
Example
He didn’t know how to **break the news** to his parents.
他不知道如何将**这个消息传达**给他的父母。
idiom

cold call

在没有事先介绍的情况下联系潜在客户
Meaning
to contact a potential customer without prior introduction
Example
He spent all morning making **cold calls** to new clients.
他花了一整个早上给新客户打**冷电话**。
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

go off on a tangent

突然开始谈论无关的话题
Meaning
to suddenly start talking about something unrelated
Example
He tends to **go off on a tangent** when discussing politics.
他谈论政治时常常偏离话题。
idiom

brainstorm

在小组讨论中生成许多创意想法
Meaning
to generate many creative ideas in a group discussion
Example
Let’s **brainstorm** some ideas for our next campaign.
让我们为我们的下一个活动产生一些想法。
idiom

lock it down

完全确保某事
Meaning
to secure something completely
Example
Before launching the website, make sure to **lock it down**.
在启动网站之前，请确保**锁定它**。
idiom

learn the ropes

学习如何做一项特定的工作或活动
Meaning
to learn how to do a particular job or activity
Example
It took me a month to **learn the ropes** at my new job.
我花了一个月时间在我的新工作中**掌握基本知识**。
idiom

burst with ideas

一下子有许多创意的想法
Meaning
to have many creative ideas at once
Example
After watching the film, he was **bursting with ideas** for his next project.
看完电影后，他为下一个项目有了许多创意的想法。
idiom

talk the talk

自信地谈论某事
Meaning
to speak confidently about something
Example
He can **talk the talk**, but can he walk the walk?
他能自信地谈论，但能做到吗？
idiom

keep the dream alive

继续为目标工作或追求，即使遭遇困难
Meaning
to continue to hope or work toward a goal even after setbacks
Example
Even after the failure, they **kept the dream alive**.
即使失败，他们依然坚持着实现自己的梦想。
idiom

win hands down

轻松或令人信服地获胜
Meaning
to win easily or convincingly
Example
Our team **won hands down** in the final match.
我们的团队在决赛中轻松获胜。
idiom

Get the scoop

第一个报道新闻，通常是独家报道。
Meaning
To be the first to report on a story, often an exclusive one.
Example
The reporter worked tirelessly to **get the scoop** on the celebrity scandal.
记者不懈努力地想要**抢到那位名人丑闻的独家新闻**。
idiom

hit the jackpot

取得巨大成功或赢得有价值的东西
Meaning
to achieve great success or win something valuable
Example
He **hit the jackpot** when his startup got acquired for millions.
当他的初创公司被以数百万收购时，他真是中大奖了。
idiom

cornerstone of success

实现成功的最重要基础或要素
Meaning
the most important foundation or element for achieving success
Example
Hard work is the **cornerstone of success**.
勤奋工作是**成功的基石**。
idiom

brighten up

变得更快乐或更开心
Meaning
to become happier or more cheerful
Example
Her face **brightened up** when she saw her friends.
当她看到她的朋友们时，她的脸**亮了起来**。
idiom

count to ten

在生气之前暂停并冷静下来
Meaning
to pause and calm down before reacting in anger
Example
When you’re upset, just **count to ten** before speaking.
当你生气时，在说话之前先**数到十**。
idiom

model evaluation

评估已训练模型的准确性和性能的过程
Meaning
the process of assessing the accuracy and performance of a trained model
Example
Before deploying the system, we need to perform **model evaluation** to ensure accuracy.
在部署系统之前，我们需要进行**模型评估**以确保准确性。
idiom

gain ground

取得进展或前进
Meaning
to make progress or advance
Example
The company has been **gaining ground** in the tech industry.
该公司在科技行业**取得进展**。
idiom

break the chains

摆脱限制或约束
Meaning
to free oneself from restrictions or limitations
Example
She wanted to **break the chains** of social expectations.
她想**打破社会期望的束缚**。
idiom

at a crossroads

处在人生必须做出决定的时刻
Meaning
at a point where a decision must be made
Example
After years of travel, she found herself **at a crossroads** in life.
经过多年的旅行，她发现自己**处在人生的十字路口**。
idiom

take it to the bank

确信某事是真的或将会发生
Meaning
to be certain that something is true or will happen
Example
You can **take it to the bank** that he’ll deliver on his promise.
你可以**确定**他会履行他的承诺。
idiom

place your confidence in

信任或依赖某人或某事
Meaning
to trust or rely on someone or something
Example
He **placed his confidence in** the team.
他**把信任寄托在**团队上。
idiom

sleep on it

推迟做决定到第二天
Meaning
to delay making a decision until the next day
Example
This is an important decision, why don't you **sleep on it**?
这是一个重要的决定，你为什么不睡一觉再说？
idiom

drop the ball

犯错或未做重要的事
Meaning
to make a mistake or fail to do something important
Example
I really **dropped the ball** by forgetting to send that important email.
我真的 **掉了球**，忘记了发送那封重要的电子邮件。
idiom

cut corners

以最简单或最便宜的方式做某事
Meaning
to do something in the easiest or cheapest way
Example
They **cut corners** to finish the project faster.
他们为了更快完成项目而走捷径。
idiom

stay the course

继续做某事直到完成或成功
Meaning
to continue doing something until it is finished or successful
Example
It’s hard, but you need to **stay the course**.
这很难，但你需要**坚持到底**。
idiom

fan through

快速翻页
Meaning
to flip through pages quickly
Example
She **fanned through** the report to find the chart.
她快速翻阅报告以找到图表。
idiom

Burn rate

创业公司花费资本的速度。
Meaning
The rate at which a startup spends its capital.
Example
Our **burn rate** is too high; we need to cut costs.
我们的**烧钱率**太高；我们需要削减成本。
idiom

keep track of

持续监控或记录信息
Meaning
to monitor or record information consistently
Example
Use the shared sheet to **keep track of** expenses.
使用共享表格来跟踪支出。
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

keep your head up

在困境中保持自信和坚强
Meaning
to remain confident and strong during hardships
Example
**Keep your head up**, better days are coming.
**抬起头来**, 更好的日子即将到来。
idiom

break the bank

花费太多钱；把所有的钱都用光
Meaning
to cost too much; to use up all your money
Example
Buying that car will **break the bank**.
买那辆车会让你**倾家荡产**。
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

black box

一个工作原理不被理解或不透明的系统或过程
Meaning
a system or process whose workings are not understood or transparent
Example
The neural network is often described as a **black box** because its decision-making process is not fully transparent.
神经网络通常被描述为一个**黑盒**，因为其决策过程并不完全透明。
idiom

put it in a nutshell

用非常清晰简洁的方式解释某事
Meaning
to explain something in a very clear and concise way
Example
To **put it in a nutshell**, the project was a success.
简而言之，项目成功了。
idiom

hit the hay

去睡觉；上床睡觉
Meaning
to go to bed; to sleep
Example
I'm really tired, so I'm going to **hit the hay** early tonight.
我很累，所以今晚要早点睡。
idiom

down and out

感到绝望和失败
Meaning
feeling hopeless and defeated
Example
After losing everything, he was completely **down and out**.
失去一切后，他完全崩溃了。
idiom

news travels fast

信息传播迅速
Meaning
information spreads quickly
Example
In small towns, **news travels fast**.
在小镇上，**新闻传播迅速**。
idiom

jot down

快速写下某事，以便以后使用
Meaning
to write something quickly for later use
Example
I always **jot down** ideas as soon as they pop into my head.
我总是尽快写下我的想法，一旦它们出现在我脑海中。
idiom

put two and two together

通过推理弄明白某事
Meaning
to figure out something by reasoning
Example
He **put two and two together** and realized she was lying.
他**推理之后**意识到她在撒谎。
idiom

have cold feet

在做重要的事情之前突然变得紧张
Meaning
to suddenly become nervous before doing something important
Example
He was ready to get married but **got cold feet** at the last minute.
他准备结婚，但在最后一分钟**得冷脚**。
idiom

social butterfly

喜欢与人见面和交谈的人
Meaning
someone who loves meeting and talking to people
Example
Emma is a **social butterfly**; she knows everyone at the event.
Emma 是一位 **社交蝴蝶**；她在活动中认识每个人。
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

fly high

非常成功或快乐
Meaning
to be very successful or happy
Example
After winning the award, she’s been **flying high**.
赢得奖项后，她一直非常高兴。
idiom

in deep water

处于严重的麻烦或困境
Meaning
to be in serious trouble or difficulty
Example
He’s **in deep water** after missing the deadline again.
他在**深水区**因为再次错过了截止日期。
idiom

a fork in the road

一个必须做出决定的时刻；在两个或更多选项之间做选择
Meaning
a point where a decision must be made; a choice between two or more options
Example
When you come to **a fork in the road**, you have to choose which way to go.
当你来到**十字路口**时，你必须选择哪条路走。
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

get the ball rolling

开始某事，尤其是一个项目或过程
Meaning
to start something, especially a project or process
Example
Let’s **get the ball rolling** on this new campaign.
让我们开始这个新活动。
idiom

break the clutter

在拥挤或竞争激烈的市场中脱颖而出
Meaning
to stand out in a crowded or competitive market
Example
A good tagline can help a brand **break the clutter**.
一个好的标语可以帮助品牌在混乱中脱颖而出。
idiom

carry on luggage

随身携带的小包或行李
Meaning
small bags taken with you on a plane or trip
Example
She packed all her essentials in her **carry on luggage**.
她把所有必需品都装在她的随身行李里。
idiom

get a taste of your own medicine

自食其果
Meaning
to be treated in the same unpleasant way that you have treated others
Example
He's always rude to people, so I'm glad he finally **got a taste of his own medicine**.
他总是对别人无礼，所以我很高兴他终于自食其果了。
idiom

have it out

开诚布公地谈论分歧以解决问题
Meaning
to talk openly about a disagreement to resolve it
Example
They decided to **have it out** instead of staying angry.
他们决定**开诚布公地谈一谈**，而不是继续生气。
idiom

data breach

未经授权访问机密信息
Meaning
unauthorized access to confidential information
Example
The company suffered a major **data breach** last year.
公司去年遭受了严重的**数据泄露**。
idiom

training the model

通过提供数据教人工智能系统如何进行预测
Meaning
to teach an AI system how to make predictions by feeding it data
Example
We spent weeks **training the model** before deployment.
我们花了几周时间在部署前**训练模型**。
idiom

beyond your wildest dreams

比你想象的更好或更惊人
Meaning
better or more amazing than imagined
Example
Her success was **beyond her wildest dreams**.
她的成功超出了她最疯狂的梦想。
idiom

break someone’s heart

让某人非常伤心
Meaning
to make someone very sad
Example
It really **broke his heart** when she left him.
当她离开他时，真的让他心碎了。
idiom

light at the end of the tunnel

困难时期后的希望之兆
Meaning
sign of hope after a difficult period
Example
After months of struggle, she finally saw the **light at the end of the tunnel**.
经过数月的奋斗，她终于看到了隧道尽头的光明。
idiom

in someone’s good books

被某人喜欢或批准
Meaning
to be liked or approved by someone
Example
She’s **in her boss’s good books** after completing the project early.
她在**她老板的好书中**，因为她提前完成了项目。
idiom

know someone inside out

非常了解某人
Meaning
to know someone very well
Example
I **know her inside out**; we’ve been friends for years.
我非常了解她；我们已经是多年的朋友了。
idiom

throw money down the drain

把钱浪费在无用的事情上
Meaning
to waste money on something useless
Example
Buying that fake brand bag was like **throwing money down the drain**.
买那个假品牌包就像是**把钱扔进排水管**。
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。