when
conj. 当…时; 一
pron. 什么时候
adv. 什么时候; 在那时; 当时
You use when to ask questions about the time at which things happen.
When are you going home?...
你什么时候回家?
When did you get married?...
你什么时候结的婚?
If something happens when something else is happening, the two things are happening at the same time.
When eating a whole cooked fish, you should never turn it over to get at the flesh on the other side...
吃一整条鱼时,切忌把它翻过来去吃另一面的肉。
Mustard is grown in the field when weeds are there, rather than when the growing crops are there.
芥菜要在地里长杂草而不是长庄稼时种植。
You use when to introduce a clause in which you mention something which happens at some point during an activity, event, or situation.
When I met the Gills, I had been gardening for nearly ten years.
遇到吉尔一家时我已经做了近10年的园艺工作。
You use when to introduce a clause where you mention the circumstances under which the event in the main clause happened or will happen.
When he brought Imelda her drink she gave him a genuine, sweet smile of thanks...
当他把饮料拿给艾梅尔达时,她真诚而甜美地向他微笑以示感谢。
I'll start to think about it when I have to write my report.
我要写报告时会对此予以考虑的。
You use when after certain words, especially verbs and adjectives, to introduce a clause where you mention the time at which something happens.
I asked him when he'd be back to pick me up...
我问他什么时候回来接我。
I don't know when the decision was made...
我不知道决定是什么时候作出的。
You use when to introduce a clause which specifies or refers to the time at which something happens.
He could remember a time when he had worked like that himself...
他还能记得自己一度工作起来也是那个样子。
She remembered clearly that day when she'd gone exploring the rockpools...
她清楚地记得她去岩石区潮水潭探险的那天。
You use when to introduce the reason for an opinion, comment, or question.
How can I love myself when I look like this?...
我这个样子,怎么能对自己满意呢?
Emerald starlings are fairly small when compared with other such birds.
与同类的其他鸟相比,翠辉椋鸟要小很多。
You use when in order to introduce a fact or comment which makes the other part of the sentence rather surprising or unlikely.
Our mothers sat us down to read and paint, when all we really wanted to do was to make a mess...
我们的母亲让我们坐下来读书和画画,而我们真正想做的却是打打闹闹。
The temperature sensor is making the computer think the engine is cold when, in fact, it's hot.
温度传感器发给计算机的信息为发动机是冷却的,可实际上它的温度很高。
1. as soon as;
when, while, as
这些连词均可表示"当……时"引出时间从句。
When will they name a successor?
他们什么时候会任命继承人?
When money falls in value, there is no encouragement to save.
货币贬值时, 就无法鼓励人们储蓄.
A cause of action has accrued when the right to sue has become vested.
起诉的理由在控告权被赋予后随之存在.
I was a tired man when the long race was over.
我跑完长跑后疲乏极了.
When there is solar halo , it will rain; when there is lunar halo , it will blow.
日晕而雨, 月晕而风.