cross over
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phrasal-verb

cross over

从某一侧到另一侧
Meaning
to go from one side to the other side of something
Example
**Cross over** the bridge to get to the other side of the river.
穿过桥梁到达河流的另一侧。
idiom

come back to earth

从兴奋或做白日梦中回到现实
Meaning
to return to reality after being excited or daydreaming
Example
After the vacation, it’s time to **come back to earth**.
假期后，应该是时候**回到现实**了。
phrasal-verb

count down from

从某个特定点开始倒数
Meaning
to recite numbers backward starting from a specific point
Example
The teacher had us **count down from** twenty to practice timing.
老师让我们从二十开始倒数来练习时间。
idiom

crybaby

一个容易抱怨或哭泣的人
Meaning
someone who complains or cries easily
Example
Don’t be a **crybaby**, it’s just a small scratch.
不要做一个**爱哭鬼**，这只是一个小小的擦伤。
idiom

can't believe your eyes

惊讶到怀疑自己看到的东西
Meaning
to be so surprised that you doubt what you are seeing
Example
I **couldn’t believe my eyes** when I saw the snowfall.
当我看到雪花时，我简直不敢相信自己的眼睛。
idiom

cross the line

做被认为不可接受的事情
Meaning
to do something that is considered unacceptable
Example
He **crossed the line** when he insulted her in front of everyone.
当他当着所有人的面侮辱她时，他**越界了**。
idiom

carry the burden

承担责任或困难的任务
Meaning
to take on responsibility or a difficult task
Example
She had to **carry the burden** of the entire project alone.
她不得不独自**承担整个项目的重担**。
idiom

Cheer up

变得更开心; 不要伤心。
Meaning
Become happier; don’t be sad.
Example
It’s not the end of the world—**cheer up**!
这不是世界的末日——振作起来！
idiom

color outside the lines

以创造性和不拘一格的方式思考或行动
Meaning
to think or act creatively and unconventionally
Example
Good designers always **color outside the lines**.
优秀的设计师总是**超越界限**思考。
phrasal-verb

cut down emissions

减少释放到空气中的有害气体
Meaning
to reduce harmful gases released into the air
Example
Businesses are investing to **cut down emissions** from transport.
企业正在投资**减少排放**来自交通运输。
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**。
phrasal-verb

check with

确认信息或向某人请求批准
Meaning
to confirm information or ask for approval from someone
Example
Please **check with** your supervisor before making any changes.
请在做任何更改之前，与您的主管确认。
phrasal-verb

carry forward lessons

将过去的经验应用到当前
Meaning
to apply what you learned from past experiences
Example
We **carry forward lessons** from each launch into the next sprint.
我们将在每次发布中吸取经验教训，并将其应用到下一个冲刺。
phrasal-verb

come into

通过继承获得钱或财产
Meaning
to receive money or property, usually by inheritance
Example
He **came into** a large sum of money after his uncle passed away.
他 **继承**了一大笔钱，在他的叔叔去世后。
phrasal-verb

copy down

写下某事，就像它是一样
Meaning
to write something exactly as it is
Example
Make sure to **copy down** the correct formula from the board.
确保从黑板上**复制下来**正确的公式。
idiom

come out on top

在某种情况下最好的或最成功的
Meaning
to be the best or most successful in a situation
Example
Despite the competition, she **came out on top**.
尽管有竞争，她**成功脱颖而出**。
idiom

come out of one's shell

变得更外向或更自信
Meaning
to become more outgoing or confident
Example
She used to be shy, but now she has finally **come out of her shell**.
她以前很害羞，但现在她终于**走出了她的壳**。
phrasal-verb

call dibs on tasks

声称对特定工作的责任
Meaning
to claim responsibility for specific work
Example
New hires **call dibs on tasks** that match their learning goals.
新员工声称那些符合他们学习目标的任务。
idiom

crack down on

采取严格措施停止某事
Meaning
to take strict action to stop something
Example
The city plans to **crack down on** illegal parking downtown.
城市计划对市中心的非法停车采取严格措施。
phrasal-verb

cheer someone up

让某人感到更快乐或不那么悲伤
Meaning
to make someone feel happier or less sad
Example
I bought flowers to **cheer her up** after the bad news.
我买了花来让她在坏消息后高兴起来。
idiom

check back in

稍后再次联系以获取更新
Meaning
to reconnect later to get an update
Example
Let’s **check back in** next week on the prototype.
我们下周再检查原型。
phrasal-verb

come out in favor of

公开支持或同意某事
Meaning
to publicly support or agree with something
Example
The committee **came out in favor of** the new proposal.
委员会**支持**了新的提案。
phrasal-verb

carry yourself with pride

以自信和尊严的方式表现自己
Meaning
to behave in a confident and dignified way
Example
Always **carry yourself with pride**, even when things get tough.
无论何时 **以自豪的姿态展示自己**, 即使在困难时刻。
idiom

close ranks

在面对反对时团结并相互支持
Meaning
to unite and support each other when facing opposition
Example
The employees **closed ranks** after the company came under criticism.
员工们在公司受到批评后**团结一致**。
phrasal-verb

cut off funding

停止提供财政支持
Meaning
to stop providing financial support
Example
The government **cut off funding** for several development projects.
政府停止了对多个发展项目的资金支持。
idiom

call to action

一种鼓励观众立即回应的提示
Meaning
a prompt that encourages an immediate response from an audience
Example
Your ad must include a strong **call to action**.
您的广告必须包含一个强有力的 **行动号召**。
idiom

cry a river

哭很多或表现出极度的悲伤
Meaning
to cry a lot or show extreme sadness
Example
He **cried a river** after hearing the news.
他听到消息后哭了很多。
phrasal-verb

come down

当雨或雪猛烈地下落时
Meaning
when rain or snow falls heavily
Example
The rain is really **coming down** now.
现在雨真的下得很大。
idiom

change of scene

新的环境或情况
Meaning
a new environment or situation
Example
After months of work, I needed a **change of scene**.
经过几个月的工作，我需要一个**场景变化**。
phrasal-verb

call for

公开要求或请求某事
Meaning
to demand or request something publicly
Example
The citizens **called for** fair elections and transparency.
市民们**要求**公平的选举和透明度。
phrasal-verb

call up

打电话
Meaning
to phone someone
Example
I’ll **call up** my friend to invite him to dinner.
我会给我的朋友打电话，邀请他来吃晚餐。
phrasal-verb

catch on quickly

快速理解新概念或想法
Meaning
to understand new concepts or ideas fast
Example
She **catches on quickly** when it comes to math problems.
她在数学问题上**迅速理解**。
idiom

canary in the coal mine

潜在危险的早期警告
Meaning
an early warning of potential danger
Example
Melting glaciers are the **canary in the coal mine** for climate change.
融化的冰川是气候变化的**煤矿中的金丝雀**。
idiom

come to terms

在讨论或冲突后达成协议
Meaning
to reach an agreement after discussion or conflict
Example
After weeks of negotiation, both sides finally **came to terms**.
经过几周的谈判，双方最终达成了协议。
phrasal-verb

chill down

在沮丧或压力之后放松和冷静下来
Meaning
to relax and become calm after being upset or stressed
Example
After a tough day, I usually take a walk to **chill down**.
经过艰难的一天，我通常散步以放松自己。
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

climb the corporate ladder

在公司中晋升或提高职位
Meaning
to advance in one’s career or position in a company
Example
He worked hard to **climb the corporate ladder**.
他努力工作以**晋升公司职位**。
idiom

cast the first stone

成为第一个批评或谴责某人的人
Meaning
to be the first to criticize or condemn someone
Example
Before you **cast the first stone**, remember that nobody is perfect.
在你**投下第一颗石头**之前，记住没有人是完美的。
idiom

cut loose

自由地表现并享受自己
Meaning
to behave freely and enjoy oneself
Example
It’s the weekend—time to **cut loose**!
是周末了—是时候**放松**了！
idiom

come out clean

被证明无罪或免除指责。
Meaning
To be proven innocent or free from blame.
Example
After investigation, he **came out clean**.
经过调查后，他被证明是清白的。
idiom

clean conscience

有一种感觉，你没有做错任何事情
Meaning
feeling that you have done nothing wrong
Example
He can sleep well because he has a **clean conscience**.
他可以睡得很好，因为他有一颗**干净的良心**。
phrasal-verb

crack up

爆笑; 无法控制地笑
Meaning
to burst into laughter; to laugh uncontrollably
Example
We all **cracked up** at his silly joke.
我们都因他的傻笑话而笑翻了。
phrasal-verb

come out stronger

从困难中恢复，变得更强大或更有智慧
Meaning
to recover from difficulties with more strength or wisdom
Example
After failing the exam, she managed to **come out stronger** and more determined.
在考试失败后，她设法**变得更强大**和更加坚定。
idiom

cross your heart

做出真诚的承诺
Meaning
to make a sincere promise
Example
I’ll never tell anyone, **cross my heart**.
我永远不会告诉任何人，**我发誓**。
idiom

Carry the torch

继续支持从过去传承下来的事业或理念。
Meaning
To continue supporting a cause or idea passed from the past.
Example
Young activists are **carrying the torch** of civil rights today.
今天的年轻活动家们正在**传承火炬**，继续推进公民权利。
phrasal-verb

cut back on expenses

减少花费；降低成本
Meaning
to spend less money; to reduce costs
Example
During tough times, companies often **cut back on expenses**.
在困难时期，公司通常会减少开支。
idiom

cross your fingers

希望事情按你想要的方式发生
Meaning
to hope that things will happen the way you want
Example
I'm **crossing my fingers** that I get the job.
我在祈祷我能得到这份工作。
idiom

cold shoulder

故意忽视某人
Meaning
to ignore someone deliberately
Example
After the argument, she gave him the **cold shoulder** for days.
争吵后，她几天没有理他。
phrasal-verb

capitalize on opportunities

利用机会获取利润
Meaning
to take advantage of favorable situations to gain profit
Example
Smart investors always **capitalize on** opportunities in the market.
聪明的投资者总是利用市场上的机会。
phrasal-verb

carry forward into

将进度或资金转移到未来的时期
Meaning
to move progress or funds into a future period
Example
We **carry forward into** next quarter any unused training budget.
我们将任何未使用的培训预算转移到下一个季度。
phrasal-verb

cooperate across

跨越不同的边界或领域共同合作或工作
Meaning
to collaborate or work jointly across different boundaries or fields
Example
Universities **cooperate across** continents to exchange research ideas.
大学之间**跨越**大陆合作，交换研究思想。
idiom

crunch the data

处理和分析大量数据
Meaning
to process and analyze large amounts of data
Example
The AI can **crunch the data** in seconds and give insights.
AI 可以在几秒钟内处理数据并提供见解。
idiom

Cook up a story

编造一个虚假的故事。
Meaning
To invent a false story.
Example
He **cooked up a story** to explain why he was late.
他编造了一个故事来解释他为什么迟到。
phrasal-verb

catch fire

开始燃烧; 变得非常兴奋或受欢迎
Meaning
to start burning; to become very exciting or popular
Example
The dry leaves quickly **caught fire** in the heat.
干叶子在热量下迅速**着火**。
phrasal-verb

come down with

染上疾病
Meaning
to become ill with a disease
Example
I think I'm **coming down with** a cold.
我觉得我**得了感冒**。
phrasal-verb

click away

快速离开危险或可疑的网页
Meaning
to leave a dangerous or suspicious webpage quickly
Example
If you see something strange, just **click away** immediately.
如果你看到奇怪的东西，请立即**点击**离开。
idiom

call to order

正式开始会议或讨论
Meaning
to officially begin a meeting or discussion
Example
The chairperson **called the meeting to order** at 10 AM.
主席在上午10点**召集了会议**。
phrasal-verb

clock in

记录开始工作的时间
Meaning
to record the time when you start work
Example
Employees must **clock in** when they begin their remote shifts.
员工必须在开始远程班次时**打卡**。
phrasal-verb

care deeply for

对某人有强烈的情感或关心
Meaning
to have strong affection or concern for someone
Example
He truly **cares deeply for** his grandparents.
他真的非常关心他的祖父母。
idiom

clear the decks

通过移除不必要的事物来为行动做准备。
Meaning
Prepare for action by removing unnecessary things.
Example
We need to **clear the decks** before the new project begins.
我们需要在新项目开始之前**clear the decks**。
phrasal-verb

carry out plans

按照计划执行或实施某事
Meaning
to execute or implement something as planned
Example
The team successfully carried out the new strategy.
团队成功地执行了新战略。
phrasal-verb

carry around

随时带着某物
Meaning
to have something with you all the time
Example
He always **carries around** a notebook to jot down ideas.
他总是带着一本笔记本来记录想法。
phrasal-verb

cut back

减少在工作上花费的时间或精力
Meaning
to reduce the amount of time or effort spent on work
Example
She decided to **cut back** her working hours to spend more time with family.
她决定减少工作时间，以便能有更多时间与家人相处。
phrasal-verb

comment on

表达关于某事的意见
Meaning
to express an opinion about something
Example
Please **comment on** the professor’s recent publication.
请评论教授最近的出版物。
phrasal-verb

carry off

成功完成困难的任务
Meaning
to succeed in doing something difficult
Example
She managed to **carry off** the project despite all the challenges.
尽管面临所有挑战，她还是成功地完成了这个项目。
phrasal-verb

cheer for

为某人或某事展示支持或热情
Meaning
to show support or enthusiasm for someone or something
Example
The crowd **cheered for** their favorite player loudly.
人群大声为他们最喜欢的球员加油。
idiom

cast in stone

固定且不可更改
Meaning
fixed and unchangeable
Example
The script isn’t **cast in stone**; we can make changes.
剧本不是**cast in stone**; 我们可以进行更改。
phrasal-verb

cut down public spending

减少公共开支
Meaning
to reduce government expenses to stabilize the economy
Example
The finance minister decided to **cut down public spending** to reduce debt.
财政部长决定减少公共开支以减少债务。
idiom

cross your heart and hope to die

真诚地发誓某事是真的
Meaning
to swear that something is true, often said with sincerity
Example
I **cross my heart and hope to die** that I will never lie to you.
我发誓并希望死去，我绝不会对你撒谎。
phrasal-verb

call ahead

提前打电话安排
Meaning
to phone in advance to make arrangements
Example
You should **call ahead** to reserve a seat.
你应该**提前打电话**预定座位。
phrasal-verb

clarify up

使某事变得更容易理解
Meaning
to make something easier to understand
Example
Can you **clarify up** what you meant in your email?
你能**澄清 up** 你在电子邮件中说的是什么意思吗？
phrasal-verb

choke on emotions

因强烈的情绪而难以说话
Meaning
to find it hard to speak because of strong emotions
Example
She **choked on emotions** while giving her farewell speech.
她在做告别演讲时**哽咽在情绪中**。
phrasal-verb

check in with yourself

暂停并反思当前的情绪状态
Meaning
to pause and reflect on your current emotional state
Example
Take a moment to **check in with yourself** during stressful days.
在压力大的日子里，花点时间**检查自己**。
phrasal-verb

cut across

同时影响多个领域或群体
Meaning
to affect multiple areas or groups at once
Example
Climate change **cuts across** every sector of society.
气候变化**影响**社会的各个领域。
idiom

come rain or shine

不管发生什么；无论天气或情况如何
Meaning
no matter what happens; in any weather or situation
Example
He goes jogging **come rain or shine**.
无论晴天还是雨天，他都会去跑步。
phrasal-verb

call by

短暂访问
Meaning
to visit briefly
Example
I’ll **call by** your office tomorrow morning.
我明天早上会顺便到你的办公室。
idiom

cover your bases

为所有可能的结果做好准备；保持谨慎
Meaning
to prepare for all possible outcomes; to be cautious
Example
Make sure you **cover your bases** before presenting the report.
在提交报告之前，确保你已经**覆盖了你的基础**。
idiom

couldn't believe my eyes

惊讶得不敢相信自己所看到的
Meaning
to be so surprised that you doubt what you see
Example
I **couldn’t believe my eyes** when I saw the results.
当我看到结果时，我简直不敢相信自己的眼睛。
idiom

code your way out

通过编程技能解决问题
Meaning
to solve a problem through programming skills
Example
When the system crashed, she managed to **code her way out**.
当系统崩溃时，她成功地**编程解决了问题**。
idiom

clamp down

采取强硬措施来制止某事
Meaning
to take strong action to stop something
Example
The manager decided to **clamp down** on late arrivals.
经理决定对迟到的人采取严格措施。
idiom

cover your tracks

隐藏一个人行为的证据
Meaning
to hide evidence of one’s actions
Example
Hackers often **cover their tracks** after breaking into systems.
黑客在进入系统后常常**掩盖他们的痕迹**。
idiom

call someone out

公开批评某人的行为或行动
Meaning
to criticize someone publicly for their behavior or actions
Example
She **called him out** for being rude to the waiter.
她因对服务员无礼而**公开批评**了他。
phrasal-verb

check on

确保某人安全或过得好
Meaning
to make sure someone is safe or doing well
Example
He **checked on** his grandparents after hearing about the storm.
在听到风暴的消息后，他检查了他的祖父母。
idiom

crash the system

使系统或过程完全崩溃
Meaning
to cause complete failure in a system or process
Example
One wrong command can **crash the system**.
一个错误的命令可能会使系统崩溃。
idiom

Cover a lot of ground

处理大量的信息或材料
Meaning
to deal with a lot of information or material
Example
The lecture **covered a lot of ground** in just one hour.
这次讲座在一个小时内涵盖了许多内容。
phrasal-verb

come under

遭受压力或攻击，特别是政治性的
Meaning
to experience pressure or attack, especially politically
Example
The government **came under** pressure to increase public spending.
政府 **承受了** 增加公共支出的压力
phrasal-verb

catch hold of

牢牢抓住某物或某人
Meaning
to grab something or someone firmly
Example
She **caught hold of** his hand to stop him from leaving.
她**抓住**了他的手，防止他离开。
idiom

calm down

冷静下来或放松
Meaning
to become less angry or upset
Example
Please **calm down**, everything is under control.
请冷静下来，一切都在掌控之中。
idiom

clue in

给某人必要的信息
Meaning
to give someone the necessary information
Example
Can you **clue me in** on the schedule changes?
你能 **告诉我时间表的变化吗？**
phrasal-verb

carry across

使人们理解你的想法或情感
Meaning
to make people understand your idea or emotion
Example
The speaker’s emotions really **carried across** to the audience.
演讲者的情感真的**传递**给了观众。
phrasal-verb

cut over

从一个旧系统切换到一个新系统
Meaning
to switch from an old system to a new one
Example
We plan to **cut over** to the new cloud platform this weekend.
我们计划这个周末切换到新的云平台。
phrasal-verb

call in

打电话给某个地方，特别是工作；请求某人帮助
Meaning
to phone a place, especially work; to ask for help from someone
Example
I had to **call in** sick this morning.
今天早上我不得不**打电话请病假**。
phrasal-verb

cheer forward

鼓励某人以信心或希望继续前进
Meaning
to encourage someone to continue with confidence or hope
Example
Let’s **cheer forward** our team even if they’re losing!
即使他们输了，我们也要鼓励我们的队伍继续前进！
idiom

cut and dry

清晰直接; 没有混淆的空间
Meaning
clear and straightforward; no room for confusion
Example
The decision wasn’t as **cut and dry** as they expected.
决策并不像他们预期的那样明确直接。
idiom

change with the times

适应社会或科技的变化
Meaning
to adapt to the changes in society or technology
Example
In order to stay relevant in the business, it's important to **change with the times**.
为了在商业中保持相关性，重要的是要**与时俱进**。
phrasal-verb

cool your temper

在生气后冷静下来
Meaning
to become calm after being angry
Example
He went for a walk to **cool his temper** before talking to her.
他去散步冷静下来，才与她交谈。
idiom

come to mind

突然想起某事
Meaning
to suddenly remember something
Example
Her name didn’t **come to mind** at first.
她的名字一开始没有想起来。
idiom

cutting-edge technology

最先进和创新的可用技术
Meaning
the most advanced and innovative technology available
Example
Our startup uses **cutting-edge technology** to solve complex problems.
我们的初创公司使用**前沿技术**解决复杂的问题。
idiom

circle of friends

一群你与之友好的人的群体
Meaning
a group of people you are friendly with
Example
She has a large **circle of friends** from college.
她有一个来自大学的大家**朋友圈**
phrasal-verb

curl up

因恐惧而蜷缩身体
Meaning
to bend your body and bring your knees close because of fear
Example
She **curled up** on the sofa when the horror movie got intense.
当恐怖电影变得紧张时，她在沙发上蜷缩起来。
phrasal-verb

comment back

在线回复某人的评论
Meaning
to reply to someone’s comment online
Example
She always **comments back** to her followers.
她总是**回复**她的粉丝的评论
idiom

Catch on

开始理解某事。
Meaning
To begin to understand something.
Example
It took him a while to **catch on** to the new rules.
他花了些时间**理解**新规则。
idiom

chill out

放松并停止生气或紧张
Meaning
to relax and stop being angry or nervous
Example
You need to **chill out** and enjoy the weekend.
你需要放松并享受周末。
idiom

cutting edge

最先进或创新的
Meaning
the most advanced or innovative
Example
Our company is working on **cutting edge** AI technology.
我们公司正在研发最先进的人工智能技术。
phrasal-verb

close a deal

达成交易
Meaning
to successfully reach an agreement or finalize a business transaction
Example
Our company managed to **close a deal** with a top European distributor.
我们的公司成功与一个欧洲分销商达成了交易。
idiom

chatterbox

一个说很多话的人
Meaning
a person who talks a lot
Example
My little sister is a real **chatterbox**.
我的小妹妹是个真正的喋喋不休的人。
phrasal-verb

connect through art

通过创造性表达建立理解或友谊
Meaning
to build understanding or friendships using creative expression
Example
People can **connect through art** even if they speak different languages.
人们可以**通过艺术连接**，即使他们讲不同的语言。
phrasal-verb

come forward with

自愿提供关于重要事情的信息或真相
Meaning
to volunteer information or truth about something important
Example
She **came forward with** the truth about what really happened.
她**主动提供了**关于真实发生的事情的真相。
phrasal-verb

come across as

表现得像或看起来像某物
Meaning
to appear or seem to be something
Example
He **came across as** a very confident person.
他**看起来像**一个非常自信的人。
idiom

carry the load

承担困难的责任
Meaning
to take responsibility for something difficult
Example
She had to **carry the load** after her manager resigned.
在她的经理辞职后，她不得不承担责任。
phrasal-verb

call back

回拨电话
Meaning
to return a phone call
Example
I’ll **call back** after I finish my meeting.
我将在会议结束后**回电**。
phrasal-verb

comfort someone with

通过提供友善的话语或支持来安慰某人
Meaning
to console someone by offering kind words or support
Example
He **comforted his friend with** kind words after the loss.
在失落之后，他**用友善的话语安慰了他的朋友**。
phrasal-verb

come up to

未达到某一特定标准或期望
Meaning
to reach a particular standard or expectation
Example
Her performance didn't **come up to** our expectations.
她的表现没有达到我们的期望。
phrasal-verb

chalk up to

将某事归因于特定原因
Meaning
to attribute something to a particular reason
Example
We **chalked it up to** experience and moved forward.
我们**将它归因于**经验并继续前进。
phrasal-verb

come back

回来
Meaning
to return to a place
Example
When will you **come back** from London?
你什么时候从伦敦回来?
phrasal-verb

clear out

摆脱不必要的东西，感到精神焕发
Meaning
to get rid of unnecessary things to feel mentally refreshed
Example
I like to **clear out** my desk when I'm feeling stressed.
当我感到有压力时，我喜欢清理我的桌子
idiom

clear away

移除物品以整理空间
Meaning
to remove things to tidy a space
Example
Please **clear away** the dishes after lunch.
请在午餐后清理盘子。
phrasal-verb

check out for the day

结束工作并在当天剩余时间里放松心情
Meaning
to finish work and mentally leave for the rest of the day
Example
Once my reports are sent, I **check out for the day** and rest.
一旦我发送完报告，我就结束工作，放松休息。
idiom

cut to the chase

迅速进入正题
Meaning
to get to the point quickly
Example
Let’s **cut to the chase** and discuss the main issue.
让我们直接进入正题，讨论主要问题。
phrasal-verb

catch someone’s eye

引起某人的注意
Meaning
to attract someone's attention
Example
The bright red car **caught my eye** as it drove past.
那辆红色的车**吸引了我的注意**，当它开过去的时候。
phrasal-verb

call upon

正式请求某人做某事
Meaning
to formally ask someone to do something
Example
The president **called upon** all citizens to work for peace.
总统号召所有公民为和平工作。