fall to
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phrasal-verb

fall to

热衷开始做某事；对某事负责
Meaning
to begin doing something eagerly; to become responsible for something
Example
Everyone **fell to** cleaning after the party ended.
每个人在派对结束后**开始**清理。
idiom

Fortune favors the bold

那些敢于冒险的人更有可能成功。
Meaning
Those who take risks are more likely to be successful.
Example
Remember, **fortune favors the bold**, so don’t be afraid to invest in new opportunities.
记住，**勇敢者得福**，所以不要害怕投资于新的机会。
idiom

fall out with

与某人争吵或不再是朋友
Meaning
to argue or stop being friends with someone
Example
They **fell out with** each other over money.
他们因为钱 **闹翻了**。
idiom

Freudian slip

无意中犯的错误，暴露出一个人的真实想法或感受。
Meaning
An unintentional mistake that reveals one's true thoughts or feelings.
Example
He made a **Freudian slip** when he called his boss ‘mom’.
他称他的老板为‘妈妈’时犯了一个**弗洛伊德失言**。
idiom

fear the unknown

害怕你不了解或没有经历过的事情
Meaning
to be afraid of things you don’t understand or haven’t experienced
Example
Many people **fear the unknown** when starting something new.
许多人在开始新事物时，**害怕未知**。
idiom

fall back on

当第一个选项失败时依赖于某事
Meaning
to rely on something when the first option fails
Example
If the deal falls through, we’ll **fall back on** our backup plan.
如果交易失败，我们将依赖我们的备份计划。
idiom

face the consequences

接受你行为的结果，不论是好是坏
Meaning
to accept the results of your actions, whether good or bad
Example
You will have to **face the consequences** of your actions.
你将不得不面对你行为的后果。
idiom

fall short

未能达到期望或标准
Meaning
to fail to meet expectations or standards
Example
His efforts **fell short** of what was needed to win the competition.
他的努力**未能达到**赢得比赛所需的标准。
idiom

flat broke

一点钱都没有
Meaning
having no money at all
Example
I was **flat broke** after paying all my bills this month.
这个月我付完所有账单后完全没有钱了。
idiom

fall for someone

开始爱上某人; 发展浪漫的感情
Meaning
to start loving someone; to develop romantic feelings
Example
He **fell for** her the moment he saw her smile.
他**爱上了她**，当他看到她的微笑。
phrasal-verb

fall into routine

适应一种规律的工作方式
Meaning
to become accustomed to a regular way of working
Example
After a few weeks, the new hires **fell into routine** easily.
几周后，新员工很容易就**掉进常规**了。
phrasal-verb

find over to

将注意力或焦点转移到新的事物上
Meaning
to move or transfer attention or focus to something new
Example
She quickly **found over to** another topic when things got awkward.
当事情变得尴尬时，她迅速转移到另一个话题。
idiom

Fail fast

快速识别并从失败中学习。
Meaning
To quickly identify and learn from failures.
Example
In startups, it’s better to **fail fast** and learn than to waste time.
在创业公司中，最好是**快速失败**并学习，而不是浪费时间。
idiom

fall flat

完全失败
Meaning
to fail completely
Example
His idea **fell flat** because nobody liked it.
他的想法完全失败了，因为没有人喜欢。
phrasal-verb

find after

追求或试图找到某物或某人
Meaning
to pursue or try to locate something or someone
Example
The detective is still **finding after** the missing document.
侦探仍在寻找丢失的文件。
idiom

faithful to the end

长时间保持忠诚和支持
Meaning
staying loyal and supportive for a long time
Example
She was **faithful to the end** in her relationship.
她在她的关系中**忠诚到底**。
phrasal-verb

fizzle out

在强烈开始后逐渐结束或失败
Meaning
to gradually end or fail after starting strongly
Example
The hype around that new brand **fizzled out** after a few months.
围绕那个新品牌的炒作在几个月后**消失了**。
idiom

footloose and fancy-free

自由做你想做的事；没有约束
Meaning
free to do whatever you want; without commitments
Example
He loves being **footloose and fancy-free** after retirement.
退休后，他喜欢无拘无束的生活。
idiom

forgive and forget

停止生气，不再记得别人的错误
Meaning
to stop being angry and not remember someone’s mistake
Example
Let’s **forgive and forget** and move on.
让我们原谅并忘记，然后继续前进。
idiom

face your fears

面对让你害怕的事情
Meaning
to confront something that scares you
Example
You need to **face your fears** if you want to grow as a person.
如果你想作为一个人发展，你需要面对你的恐惧。
idiom

fail fast, learn faster

快速识别错误并将其用作学习机会
Meaning
to quickly identify mistakes and use them as learning opportunities
Example
In startup culture, it’s encouraged to **fail fast, learn faster**.
在初创公司文化中，鼓励**失败快，学习更快**。
phrasal-verb

figure lessons out

发现从失败中可以学到的东西
Meaning
to discover what can be learned from failure
Example
It took him some time to **figure lessons out** from his failed business.
他花了一些时间从他失败的生意中**找出教训**。
phrasal-verb

feel down

感到悲伤或不快乐
Meaning
to feel sad or unhappy
Example
She’s been **feeling down** since her pet passed away.
她自从她的宠物去世以来一直感到沮丧。
idiom

fall in with

加入或同意一个小组或计划
Meaning
to join or agree with a group or plan
Example
She decided to **fall in with** the volunteer crew for the weekend.
她决定加入志愿者团队度过周末。
idiom

fall flat on your face

以令人尴尬的方式彻底失败
Meaning
to fail completely in an embarrassing way
Example
He **fell flat on his face** during his first business attempt.
他在第一次商业尝试中完全失败了。
idiom

freshen up

清洗或整理自己以感到焕然一新
Meaning
to wash or tidy oneself to feel renewed
Example
Guests can **freshen up** in the lounge before dinner.
客人可以在晚餐前在休息室里清新自己。
phrasal-verb

flip out

极度惊讶、愤怒或激动地反应
Meaning
to react with extreme surprise, anger, or excitement
Example
He **flipped out** when he saw the mess in his room.
当他看到房间里的混乱时，他完全失控了。
phrasal-verb

filter in calmness

逐渐将平静或冷静带入你的心灵
Meaning
to gradually bring peace or calm into your mind
Example
Meditation helps **filter in calmness** during stress.
冥想有助于在压力中**带来平静**。
phrasal-verb

frame setbacks as lessons

将问题描述为学习的机会
Meaning
to describe problems as opportunities to learn
Example
We **frame setbacks as lessons** so the team stays optimistic.
我们**将问题描述为学习的机会**，以便团队保持乐观。
idiom

full of oneself

过于骄傲或自信
Meaning
to be overly proud or self-confident
Example
He’s so **full of himself** after getting that promotion.
他在获得晋升后变得如此**自大**。
phrasal-verb

fill in as

临时接管某人的工作或职位
Meaning
to temporarily take over someone’s job or position
Example
He will **fill in as** project manager while the current one is on leave.
他将临时接管项目经理的职位，直到当前的经理休假。
idiom

fade to black

以戏剧性方式结束某事
Meaning
to end something dramatically
Example
The director chose to **fade to black** at the emotional climax.
导演在情感高潮时选择了 **fade to black**。
idiom

fake it till you make it

在你真正自信之前，先表现得像一个自信的人。
Meaning
to act confidently until you actually feel confident
Example
**Fake it till you make it**—confidence will follow.
“假装自信，直到你真的自信”——自信会随之而来。
phrasal-verb

face up to the truth

接受或面对某个情况的现实
Meaning
to accept or confront the reality of a situation
Example
It’s time to **face up to the truth** about your mistakes.
是时候面对关于你错误的事实了。
phrasal-verb

fight against

反对或抵抗有害或不公正的事情
Meaning
to oppose or resist something harmful or unjust
Example
We must **fight against** discrimination in every form.
我们必须 **反对** 任何形式的歧视。
idiom

family comes first

家庭是生活中最重要的优先事项
Meaning
family is the most important priority in life
Example
No matter how busy I get, **family comes first** for me.
无论我多么忙碌，**家庭第一**对我来说是最重要的。
phrasal-verb

factor in for

在计划某事时考虑一个因素
Meaning
to include a consideration when planning for something
Example
Analysts **factor in for** currency swings when forecasting prices.
分析师在预测价格时考虑到货币波动。
idiom

fend off

抵御某事或某人
Meaning
to defend against something or someone
Example
They installed lights to **fend off** raccoons in the yard.
他们安装了灯来驱赶院子里的浣熊。
idiom

fill in for

暂时替代某人工作
Meaning
to do someone’s job temporarily
Example
Can you **fill in for** Rosa while she’s on leave?
你能在 Rosa 休假时替她工作吗？
idiom

follow your heart

根据你的感受做出决定
Meaning
to make a decision based on your feelings
Example
When choosing a career, it’s best to **follow your heart**.
选择职业时，最好**跟随你的心**。
idiom

fall in love

对某人产生浪漫的感情
Meaning
to develop romantic feelings for someone
Example
I didn't expect to **fall in love** with her so quickly.
我没想到会这么快就爱上她。
idiom

fill out

通过提供信息来填写表格
Meaning
to complete a form by providing information
Example
Please **fill out** this survey after the workshop.
请在研讨会后填写此调查。
idiom

full steam ahead

全力以赴地前进
Meaning
to move forward with great energy or speed
Example
The team is going **full steam ahead** with the new logistics plan.
团队正全力以赴地推进新的物流计划。
phrasal-verb

feel torn about

对选择或决定感到矛盾或后悔
Meaning
to feel conflicted or regretful about a choice or decision
Example
I **feel torn about** leaving my hometown for work.
我对离开家乡去工作感到很矛盾。
phrasal-verb

focus on strengths

集中精力在你的优点和能力上
Meaning
to concentrate on your positive qualities and abilities
Example
Try to **focus on strengths** instead of weaknesses.
试着专注于**你的优势**而不是弱点。
phrasal-verb

fuel up on

吃或喝某些东西来获得能量
Meaning
to eat or drink something to gain energy
Example
We **fuel up on** oatmeal before the morning hike.
我们在早晨的远足之前会吃燕麦片来补充能量
phrasal-verb

fall back into friendship

在冲突后自然地再次成为朋友
Meaning
to become friends again naturally after a conflict
Example
After a few months, they **fell back into friendship** as if nothing happened.
几个月后，他们**回到了友谊中**，就像什么都没发生过一样。
phrasal-verb

face down

勇敢地面对某人或某事
Meaning
to confront someone or something bravely
Example
He **faced down** his fears and took the exam again.
他勇敢地面对了自己的恐惧，再次参加了考试。
phrasal-verb

follow a routine

定期做相同的活动
Meaning
to do the same set of activities regularly
Example
If you **follow a routine**, you’ll build good habits over time.
如果你**遵循一个例行公事**，你会随着时间建立良好的习惯。
phrasal-verb

flare with joy

突然感到或表现出极大的幸福
Meaning
to suddenly feel or show great happiness
Example
His face **flared with joy** when he saw his family again.
当他再次看到他的家人时，他的脸上充满了喜悦。
phrasal-verb

find along

在移动或旅行中发现或遇到某物
Meaning
to discover or encounter something while moving or traveling
Example
We **found along** a beautiful lake on our way to the hills.
我们在前往山丘的路上发现了一个美丽的湖泊。
idiom

from the ground up

从头开始完全构建或启动某事
Meaning
to build or start something completely from the beginning
Example
The software was built **from the ground up** using new code.
该软件是使用新代码从头开始开发的。
idiom

find the right balance

在工作与个人生活之间取得健康或有效的平衡
Meaning
to achieve a healthy or effective equilibrium between work and personal life
Example
It took me a while, but I finally **found the right balance** between work and family.
我花了一些时间，但最终找到了工作和家庭之间的平衡。
phrasal-verb

fill in gaps

完成理解或知识中缺失的部分
Meaning
to complete missing parts of understanding or knowledge
Example
Teachers help students **fill in gaps** in their learning.
老师帮助学生**填补学习中的空白**。
phrasal-verb

flow with

随着情感或情况自然地流动，而不是抵抗它们
Meaning
to move along naturally with emotions or situations instead of resisting them
Example
She learned to **flow with** her emotions rather than fight them.
她学会了随着情感流动，而不是抵抗它们
idiom

fail forward

从失败中学习和成长
Meaning
to learn and grow from failure
Example
Don’t be afraid to **fail forward** and learn from your mistakes.
不要害怕**向前失败**，从错误中学习。
idiom

faint-hearted

缺乏勇气或决心
Meaning
lacking courage or determination
Example
Climbing this mountain is not for the **faint-hearted**.
爬这座山不是给胆小的人。
idiom

find your feet

在新环境中感到舒适
Meaning
to become comfortable in a new situation
Example
It took a few months for him to **find his feet** in the new city.
他花了几个月才在新城市站稳脚跟。
idiom

feel it in your bones

没有证据地强烈感知某事
Meaning
to sense something strongly without evidence
Example
I **feel it in my bones** that something bad will happen.
我在骨头里感觉到一些不好的事情将要发生
idiom

fall head over heels

深深地坠入爱河
Meaning
to fall deeply in love
Example
He **fell head over heels** in love with her the moment they met.
他一见钟情，在他们第一次见面时就深深地爱上了她。
phrasal-verb

flag wins publicly

在别人面前承认成就
Meaning
to acknowledge achievements in front of others
Example
Managers **flag wins publicly** to keep motivation high.
经理们**旗帜公开获胜**，以保持高涨的士气。
phrasal-verb

follow through with receipts

通过附加证据完成费用报告
Meaning
to complete expense reports by attaching proof
Example
Please **follow through with receipts** within two business days.
请在两个工作日内通过收据完成此事。
phrasal-verb

follow up

检查进展或采取进一步行动，处理之前讨论过的事项
Meaning
to check progress or take further action on something previously discussed
Example
I’ll **follow up** with the client about the new proposal.
我会跟进客户关于新提案的情况。
phrasal-verb

finish off

完成某事的最后部分
Meaning
to complete the last part of something
Example
We just need to **finish off** the presentation slides before submitting the report.
我们只需要在提交报告之前完成演示文稿的幻灯片。
phrasal-verb

fall over

失去平衡并跌倒在地
Meaning
to lose balance and drop to the ground
Example
The baby **fell over** while trying to walk.
婴儿在尝试走路时 **跌倒** 了。
idiom

filter bubble

一种情况，人们只看到强化其信仰的在线内容
Meaning
a situation where a person only sees online content that reinforces their beliefs
Example
Many people live inside a **filter bubble** on social media.
许多人生活在社交媒体的**过滤泡沫**中。
phrasal-verb

flatten out

停止增加或减少，并保持在同一水平
Meaning
to stop increasing or decreasing and stay at the same level
Example
After years of fluctuation, growth has **flattened out**.
经过多年的波动后，增长已经**平稳**。
phrasal-verb

figure out regulations

理解外国的法律和商业规则
Meaning
to understand foreign laws and business rules
Example
It can take months to **figure out regulations** in a new country.
在一个新国家，**找出规定** 可能需要几个月。
phrasal-verb

falter on

做某事时犹豫或犯错误
Meaning
to hesitate or make mistakes while doing something
Example
She **faltered on** a few words during her speech.
她在演讲中犹豫了几次。
phrasal-verb

filter out tension

去除或屏蔽压力情绪或思维
Meaning
to remove or block stressful emotions or thoughts
Example
Yoga helps you **filter out tension** from your body and mind.
瑜伽帮助你从身体和思维中**过滤紧张**。
B1 idiom

fish out of water

感到不舒服或不合时宜的人
Meaning
Someone who feels uncomfortable or out of place
Example
At the formal party, the casual dresser felt like a fish out of water.
在正式的聚会上，那个穿着随意的人感到格格不入。
phrasal-verb

find over

仔细检查或审查某件事
Meaning
to review or check something carefully
Example
Let’s **find over** the details before submitting the report.
在提交报告之前，我们仔细检查一下细节。
phrasal-verb

fill your heart with gratitude

专注于你感激的事情
Meaning
to focus on the things you are thankful for
Example
Every morning, **fill your heart with gratitude** to start the day right.
每天早晨，**怀着感激的心情开始新的一天**。
phrasal-verb

follow along

跟上或理解正在说或展示的内容
Meaning
to keep up with or understand what is being said or shown
Example
The audience **followed along** as the journalist described the events.
观众**跟着**记者描述事件的进展。
phrasal-verb

freak over

对某事变得非常焦虑或不安
Meaning
to become very anxious or upset about something
Example
He **freaked over** the missed deadline and couldn’t focus on anything else.
他因为错过了最后期限而非常焦虑，无法集中精力做其他事情。
idiom

fall flat on one’s face

完全失败或让自己出丑
Meaning
to fail completely or embarrass oneself
Example
He **fell flat on his face** trying to start a new business.
他在尝试创业时**彻底失败，颜面尽失**。
phrasal-verb

find common ground with

找到共同利益，以便更容易合作
Meaning
to identify shared interests so cooperation is easier
Example
Negotiators **find common ground with** each side before drafting terms.
谈判人员在起草条款之前，与各方找到共同点。
idiom

family ties

家庭成员之间的紧密联系。
Meaning
Strong connections among family members.
Example
**Family ties** kept her close to her hometown.
**家庭纽带**让她与家乡保持紧密联系。
idiom

fit for a king

非常高质量或奢华的东西
Meaning
something of very high quality or luxurious
Example
The dinner was **fit for a king**.
晚餐堪称国王的标准。
idiom

farm out

将工作交给别人做
Meaning
to give work to someone else to do
Example
The company decided to **farm out** its design work.
公司决定将其设计工作外包。
phrasal-verb

follow one’s passion

追随你真正热爱的或感兴趣的事情
Meaning
to pursue what you truly love or are interested in
Example
He chose to **follow his passion** for music instead of money.
他选择了追随自己对音乐的热情，而不是追求金钱。
phrasal-verb

fit around

组织工作或任务，以适应其他活动或人员
Meaning
to organize work or tasks to accommodate other activities or people
Example
She managed to **fit her schedule around** her team’s needs to ensure smooth collaboration.
她设法将自己的**时间表安排**在她团队的需求周围，以确保顺利的合作。
idiom

figure out

理解或解决某事
Meaning
to understand or solve something
Example
We need to **figure out** why the emails bounced.
我们需要理解为什么邮件被退回。
phrasal-verb

fade in

在场景开始时逐渐变得可见
Meaning
to gradually become visible at the beginning of a scene
Example
The movie **fades in** with a beautiful sunrise.
电影以美丽的日出开始。
phrasal-verb

find for

支持或判决某人有利（通常是在法律案件中）
Meaning
to support or rule in favor of someone (usually in a legal case)
Example
The court **found for** the defendant after reviewing the evidence.
法院在审查证据后判决被告有利。
phrasal-verb

forgive someone for

停止因为某人做的事情而对他们生气
Meaning
to stop being angry with someone for what they did
Example
She finally **forgave him for** lying.
她终于因撒谎而原谅了他。
phrasal-verb

figure through

通过仔细思考来理解某事
Meaning
to understand something by thinking about it carefully
Example
It took me a while to **figure through** what went wrong in the project.
我花了一些时间来弄明白项目中出了什么问题。
idiom

forty winks

小睡一会儿
Meaning
a short nap or brief sleep
Example
He likes to take **forty winks** after work.
他喜欢下班后小睡一会儿。
idiom

fearless as a lion

非常勇敢和大胆
Meaning
to be very brave and bold
Example
The firefighter was **fearless as a lion** during the rescue.
消防员在营救过程中是**fearless as a lion**。
idiom

foot the bill

为某物支付费用，尤其是昂贵的东西
Meaning
to pay for something, especially something expensive
Example
His father will **foot the bill** for the wedding.
他的父亲会为婚礼支付费用。
idiom

feel the strain

因困难的情况感受到压力或压力
Meaning
to feel stress or pressure from a difficult situation
Example
Many employees are starting to **feel the strain** of the workload.
许多员工开始感受到工作负荷的压力。
phrasal-verb

forward to

将收到的消息转发给另一个人
Meaning
to send a received message to another person
Example
Can you **forward** this message **to** the manager?
你能把这个消息转发给经理吗？
phrasal-verb

focus on improvement

专注于改进
Meaning
to give attention to becoming better at something
Example
Every student should **focus on improvement** rather than perfection.
每个学生都应该**专注于改进**，而不是完美。
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。
phrasal-verb

foster in

在某人或某个团体内促进某个品质或思想的发展
Meaning
to promote the development of a quality or idea within someone or a group
Example
The program aims to **foster in** participants a sense of responsibility.
该项目旨在培养参与者的责任感。
phrasal-verb

finish up

完成或结束某事
Meaning
to complete or end something
Example
Let’s **finish up** this report before the meeting starts.
在会议开始之前，让我们完成这份报告。
idiom

feel on top of the world

感到非常快乐和健康
Meaning
to feel very happy and healthy
Example
After recovering from the flu, I **felt on top of the world**.
从流感恢复后，我感到像是站在世界之巅。
phrasal-verb

focus on gratitude

专注于你感激的事情
Meaning
to concentrate on things you are thankful for
Example
Each morning, **focus on gratitude** to start your day positively.
每天早晨，**专注于感恩** 以积极的方式开始你的一天。
phrasal-verb

fill in for someone

临时代替某人的工作
Meaning
to do someone’s job temporarily
Example
I had to **fill in for** my colleague while he was on leave.
我不得不在我的同事休假期间**替代**他。
phrasal-verb

find oneself

意识到自己的身份、目的或情况
Meaning
to realize one’s identity, purpose, or situation
Example
After years of traveling, he finally **found himself**.
经过多年的旅行，他终于**找到了自己**。
idiom

fight fire with fire

以其人之道还治其人之身
Meaning
to use the same tactics as one’s opponent
Example
When negotiations failed, they decided to **fight fire with fire**.
当谈判失败时，他们决定以其人之道还治其人之身。
idiom

feel off-color

感觉有点不舒服
Meaning
to feel slightly ill
Example
I’m feeling a bit **off-color** today.
我今天感觉有点不舒服。
idiom

full of years

活得长久且充实
Meaning
having lived a long and fulfilling life
Example
He passed away **full of years** and surrounded by family.
他在**满载岁月**并被家人环绕的情况下去世。
phrasal-verb

find peace within

达到内心的平静和接受的状态
Meaning
to achieve a state of inner calm and acceptance
Example
Meditation helps many people **find peace within** themselves.
冥想帮助许多人在内心找到平静。
idiom

fall through the cracks

被忽视或忽略
Meaning
to be overlooked or neglected
Example
I forgot to follow up on his application and it **fell through the cracks**.
我忘了跟进他的申请，结果它**被忽略了**。
phrasal-verb

follow up on leads

在初次会议或询问后与潜在客户联系
Meaning
to contact potential clients after an initial meeting or inquiry
Example
The sales team will **follow up on leads** from the international trade fair.
销售团队将从国际贸易展览会中**跟进潜在客户**。
phrasal-verb

feed on

从某事中获得支持或能量，通常是负面的；由某事支持
Meaning
to gain support or energy from something, often negative; to be sustained by
Example
The tabloids **feed on** celebrity scandals to boost their sales.
小报通过名人丑闻获取能量来增加销售。
idiom

flag down

示意某人停下，尤其是交通工具
Meaning
to signal someone to stop, especially a vehicle
Example
We finally **flagged down** a taxi after ten minutes.
我们终于在十分钟后拦住了一辆出租车。
phrasal-verb

fit in with

与某事物一致或适合某事物
Meaning
to agree with or be suitable for something
Example
Her views **fit in with** the rest of the team.
她的观点**与**团队其他成员**契合**。
phrasal-verb

focus ahead

集中精力于未来和前方的事物，而不是过去
Meaning
to concentrate on the future and what lies ahead instead of the past
Example
Let’s **focus ahead** instead of worrying about past mistakes.
让我们 **专注未来**，而不是担心过去的错误。
idiom

fall through

失败
Meaning
to fail to happen
Example
Our travel plans might **fall through** if the storm hits.
如果暴风雨来临，我们的旅行计划可能会失败。
phrasal-verb

follow through on decisions

继续进行一项行动，直到完成
Meaning
to continue with an action until it is completed
Example
Leaders must always follow through on their promises.
领导人必须始终兑现他们的承诺。
phrasal-verb

find out about

了解有关某事的具体信息或细节
Meaning
to learn specific information or details regarding something
Example
I need to **find out about** the new insurance policy.
我需要**了解**新保险政策的相关信息。
phrasal-verb

fall behind schedule

进展比计划的慢
Meaning
to not be progressing as quickly as planned
Example
Construction has **fallen behind schedule** due to bad weather.
由于恶劣天气，建设工作**落后于计划**。
idiom

Fuel the economy

刺激经济增长。
Meaning
To stimulate economic growth.
Example
Government spending can **fuel the economy** during a recession.
政府开支可以在衰退期间**刺激经济**。
phrasal-verb

fall behind in

在某方面没有像其他人一样进展
Meaning
to not make as much progress as others in something
Example
If you skip classes, you might **fall behind in** your studies.
如果你跳过课，你可能会在学业上**落后**。
phrasal-verb

fall out

争吵; 停止做朋友
Meaning
to have an argument; to stop being friends
Example
They **fell out** over a small misunderstanding.
他们因为一个小误会而**不再是朋友**。
idiom

fail better

通过从过去的失败中学习来改进
Meaning
to improve by learning from past failures
Example
Even if you fail, try to **fail better** next time.
即使你失败了，下次也要尽量**失败得更好**。
phrasal-verb

fit into society

在新的社会环境中被接受或感到舒适
Meaning
to become accepted or comfortable within a new social environment
Example
Newcomers often struggle to **fit into society** when they move abroad.
新移民在搬到国外时常常很难**融入社会**。
idiom

frozen with fear

因恐惧而僵硬
Meaning
unable to move because of extreme fear
Example
She stood **frozen with fear** when the snake appeared.
她因恐惧而僵硬，当蛇出现时。
phrasal-verb

follow back

关注已关注你的人
Meaning
to follow someone who has followed you
Example
She didn’t **follow back** even though I followed her first.
尽管我先关注了她，她没有回关我。