in

preposition

/ɪn/

For the special uses of in in phrasal verbs, look at the entries for the verbs. For example deal in something is in the phrasal verb section at deal.Idioms

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at a point within an area or a space在（某范围或空间内的）某一点
- a country in Africa非洲的一个国家
- The kids were playing in the street.孩子们在街上玩。
- It's in that drawer.它放在那个抽屉里。
- I read about it in the paper.我是在报纸上读到这事的。
within the shape of something; surrounded by something在（某物的形体或范围）中；在…内；在…中
- She was lying in bed.她躺在床上。
- sitting in an armchair坐在扶手椅里
- Leave the key in the lock.把钥匙留在锁孔里。
- Soak it in cold water.把这东西浸泡在冷水里。
into something进入
- He dipped his brush in the paint.他把毛刷在涂料里蘸了蘸。
- She got in her car and drove off.她钻进汽车里，开走了。
forming the whole or part of something/somebody; contained within something/somebody构成…的整体（或部分）；包含在…之内
- There are 31 days in May.五月份有 31 天。
- all the paintings in the collection收藏品中的所有画作
- I recognize his father in him (= his character is similar to his father's).我在他身上看到了他父亲的气质。
during a period of time在（某段时间）内
- in 2021在 2009 年
- in the 18th century在 18 世纪
- in spring/summer/autumn/winter在春天／夏天／秋天／冬天
- in the fall在秋天
- in March在三月
- in the morning/afternoon/evening在上午／下午／晚上
- I'm getting forgetful in my old age.我现在上了年纪，变得健忘了。
Topics Timea1
after a particular length of time在（某段时间）之后
- to return in a few minutes/hours/days/months.几分钟／几小时／几天／几个月后回来
- It will be ready in a week's time (= one week from now).只需一周的时间就会准备好。
- She learnt to drive in three weeks (= after three weeks she could drive).她花了三个星期就学会开车。
(used in negative sentences or after first, last, etc.用于否定句或 first、last 等之后) for a particular period of time在（某段时间）内
- I haven't seen him in years.我有好些年没见过他了。
- It's the first letter I've had in ten days.这是我十天来收到的第一封信。
Topics Timeb1
wearing something穿着；戴着
- dressed in their best clothes穿着他们最好的衣服
- the man in the hat戴帽子的男子
- to be in uniform穿着制服
- She was all in black.她穿着一身黑。
used to describe something that is all around you（用以描述具体的环境）
- We went out in the rain.我们冒雨出去了。
- He was sitting alone in the darkness.他独自坐在黑暗中。
used to show the language, material, etc. used（表示使用的语言、材料等）
- Say it in English.用英语说吧。
- She wrote in pencil.她用铅笔写的。
- Put it in writing.把它写下来。
- I paid in cash.我用现金支付。
- He spoke in a loud voice.他大声说话。
used to show a state or condition（表示状态或状况）
- I'm in love!我恋爱了！
- The house is in good repair.这所房子保养得不错。
- I must put my affairs in order.我必须整理整理我的事务。
- a man in his thirties一名三十多岁的男子
- The daffodils were in full bloom.水仙花正盛开。
involved in something; taking part in something参与；参加
- to act in a play参加演戏
used to show somebody’s job or profession（显示工作或职业）
- He is in the army.他在军队服役。
- She's in computers.她从事计算机业。
- in business从商
used to show the form, shape, arrangement or quantity of something（显示某物的形式、形状、安排或数量）
- a novel in three parts分为三部的小说
- Roll it up in a ball.把它卷成一个球。
- They sat in rows.他们一排一排地坐着。
- People flocked in their thousands to see her.现场聚集了数以千计的人争相一睹她的丰采。
used to show the quality or thing that a judgement is being made about关于；在…方面
- She was not lacking in courage.她并不缺乏勇气。
- a country rich in minerals矿藏丰富的国家
- three metres in length三米长
while doing something; while something is happening做…时；…发生时；当…时
- In attempting to save the child from drowning, she nearly lost her own life.她在抢救落水的儿童时，自己差点丧命。
- In all the commotion I forgot to tell him the news.在一阵混乱之中我忘了告诉他那个消息。
used to introduce the name of a person who has a particular quality（引出具某种品质的人的名字）
- We're losing a first-rate editor in Jen.我们即将失去珍这位一流的编辑。
used to show a rate or relative amount（显示比率或相对数量）
- a gradient of one in five五分之一的坡度
- a tax rate of 22 pence in the pound每英镑 22 便士的税率

Word OriginOld English in (preposition), inn, inne (adverb), of Germanic origin; related to Dutch and German in (preposition), German ein (adverb), from an Indo-European root shared by Latin in and Greek en.

Idioms

in that

/ˈɪn ðət/

(formal) for the reason that; because原因是；因为
- She was fortunate in that she had friends to help her.她很幸运，有一些朋友帮助她。

in

adverb

/ɪn/

For the special uses of in in phrasal verbs, look at the entries for the verbs. For example fill in (for somebody) is in the phrasal verb section at fill.Idioms

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into an object, an area or a substance进入
- She opened the door and went in.她打开门进去了。
- The kids were playing by the river and one of them fell in.孩子们在河边玩耍时，其中一个落水了。
opposite out (1)
contained within an object, an area or a substance在里面；在内
- We were locked in.我们被锁在里面了。
- I can't drink coffee with milk in.我不能喝加牛奶的咖啡。
(of people人) at home or at a place of work在家里；在工作单位
- Nobody was in when we called.我们打电话过去时没有人在。
- I didn't hear you come in.我没听见你进来。
opposite out (2)
(of trains, buses, etc.火车、公共汽车等) at the place where people can get on or off, for example the station在车站；在停靠站
- The bus is due in (= it should arrive) at six.公共汽车应该在六点钟到站。
(of letters, etc.信件等) received收到；被投递到
- Applications must be in by April 30.申请务必于四月三十日之前寄到。
(of the tide潮汐) at or towards its highest point on land上涨；在最高点
- Is the tide coming in or going out?现在是涨潮还是落潮？
opposite out (17)
elected当选
- Several new councillors got in at the last election.几位新政务委员在最近一轮选举中当选。
(in cricket, baseball, etc.板球、棒球等) if a team or team member is in, they are batting轮上击球 opposite out (20)Topics Sports: ball and racket sportsc2
(in tennis, etc.网球等) if the ball is in, it has landed inside the line（球）落在界内
- Her serve was just in.她发的球刚好落在界内。
- The ball landed in.球落了进去。
opposite out (22)Topics Sports: ball and racket sportsa2

Idioms

be in at something

to be present when something happens某事发生时在场
- They were in at the start.开始时他们在场。

be in for something

(informal) to be going to experience something soon, especially something unpleasant即将经历，即将遭受（不愉快的事）
- He's in for a shock!他很快就会感到震惊的！
- I'm afraid we're in for a storm.看来我们就要遇到暴风雨了。

be/get in on something

(informal) to be/become involved in something; to share or know about something参与；了解
- I'd like to be in on the plan.我很想参与这项计划。
- Is she in on the secret?她知道这个秘密吗？

be (well) in with somebody

(informal) to be (very) friendly with somebody, and likely to get an advantage from the friendship和…（十分）友好（很可能从中得到好处）

in and out (of something)

going regularly to a place时常出入
- He was in and out of jail for most of his life.他大半生的时间都是监狱的常客。

in

adjective

/ɪn/

[usually before noun] (informal)

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popular and fashionable流行的；时髦的
- Purple is the in colour this spring.紫色是今年春天的流行色。
- Exotic pets are the in thing right now.奇异的宠物眼下很时髦。
- Short skirts are in again.现在又时兴穿短裙了。
see also in-jokeTopics Clothes and Fashionc1
Word OriginOld English in (preposition), inn, inne (adverb), of Germanic origin; related to Dutch and German in (preposition), German ein (adverb), from an Indo-European root shared by Latin in and Greek en.

in

noun

/ɪn/

Idioms

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Idioms

have an in with somebody

(especially North American English) to have influence with somebody对某人有影响

the ins and outs (of something)

all the details, especially the complicated or difficult ones（尤指复杂或难的）全部细节，详情
- the ins and outs of the problem问题的来龙去脉
- He quickly learned the ins and outs of the job.他很快就掌握了工作的全部诀窍。

an in to something

(also a way into something)

something that allows you to join a group of people, an industry, etc. that it is difficult to join, or to understand something that it is difficult to understand（加入难以进入的群体、行业等的）敲门砖；（弄懂难以理解的事物的）窍门，诀窍