when

美 [wɛn]

英 [wen]

复数：whens

同义词

adv.

once,after,as soon as

when

显示所有例句

adv.

1.	什么时候；何时；什么情况下；什么场合下at what time; on what occasion

	When did you last see him? 你上次什么时候见到他的？
	When can I see you? 我什么时候可以见你？
	When(= in what circumstances) would such a solution be possible? 什么情况下可以这么解决？

2.	（用于时间的表达方式之后）在那时，其时used after an expression of time to mean ‘at which’ or ‘on which’

	Sunday is the only day when I can relax. 星期日是我唯一可以休息的日子。
	There are times when I wonder why I do this job. 有时候我也不明白自己为什么要干这个工作。

3.	其时；当时；当场at which time; on which occasion

The last time I went to Scotland was in May, when the weather was beautiful.

我上次去苏格兰是在五月份，那时的天气好极了。

pron.

1.	什么时候；何时what/which time

	Until when can you stay? 你可以待到什么时候？
	‘I've got a new job.’ ‘Since when?’ “我有了份新工作。”“什么时候开始的？”

conj.

1.	在…时候；当…时；在…期间at or during the time that

I loved history when I was at school.

我上学时喜欢历史。

在…之后after

Call me when you've finished.

你完成后就打电话给我。

3.	在任何…时候at any time that; whenever

Can you spare five minutes when it's convenient?

方便时能占用你五分钟时间吗？

4.	一…就；刚…就just after which

He had just drifted off to sleep when the phone rang.

他刚睡着电话铃就响了。

5.	考虑到；既然considering that

How can they expect to learn anything when they never listen?

既然他们从不听讲，他们怎么能指望学到东西呢？

6.	虽然；然而；可是although

She claimed to be 18, when I know she's only 16.

她自称是 18 岁，可是我知道她才 16 岁。