in
preposition /ɪn/
/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 - 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。
- a country in Africa
- 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。
- She was lying in bed.
- 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。
- He dipped his brush in the paint.
- 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。
- There are 31 days in May.
- 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。
- in 2021
- 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。
- to return in a few minutes/hours/days/months.
- (used in negative sentences or after first, last, etc.
用于否定句或 first、last 等之后 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。
- I haven't seen him in years.
- 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。
- dressed in their best clothes
- 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。
- We went out in the rain.
- 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。
- Say it in English.
- 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。
- I'm in love!
- involved in something; taking part in something
参与；参加 - to act in a play
参加演戏
- to act in a play
- 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
- He is in the army.
- 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。
- a novel in three parts
- 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
- She was not lacking in courage.
- 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。
- In attempting to save the child from drowning, she nearly lost her own life.
- 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。
- We're losing a first-rate editor in Jen.
- 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
- a gradient of one in five
词源Old 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/
/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。
- She was fortunate in that she had friends to help her.