英汉词典

when 基本解释

• conj. 考虑到；既然；当…时；在…时；如果
• adv. 什么时候，何时；（用于时间的表达方式之后）在那时；其时；当时
• pron. 那时；什么时侯
• n. 时间，时候；日期；场合

when 中文词源

来自PIE*kwo,印欧语疑问代词根，词源同who,where,why,how.

when 英文词源

when

when: [OE] When was formed from the ancient interrogative base *qwo- (source also of English what, who, etc) and a nasal suffix which also appears in then. From the same ancestor, but with an additional dental suffix, came Latin quando ‘when’, source of English quandary.
=> quandary

when (adv.)

Old English hwænne, hwenne, hwonne, from Proto-Germanic *hwan- (cognates: Old Saxon hwan, Old Frisian hwenne, Middle Dutch wan, Old High German hwanne, German wann "when," wenn "if, whenever"), from pronominal stem *hwa-, from PIE interrogative base *kwo- (see who). Equivalent to Latin quom, cum. As a conjunction in late Old English. Say when "tell me when to stop pouring you this drink" is from 1889.

when 英文释义

1. as soon as;

"once we are home, we can rest"

when 同义词解析

when, while, as

这些连词均可表示"当……时"引出时间从句。

when： 所引导的从句，其谓语动词既可是持续动词，也可是短暂动词；谓语动词动作发生的时间可以与主句谓语动词的动作是同时，或之前、之后。

while： 句中的谓语动词应为持续动词，不用短暂动词，谓语动作发生的时间通常与主句谓语动词动作发生时间是同时。

as： 侧重指从句与主句的动作同时进行，谓语动词可以是持续性的，可以是短暂性动词。

when 双语例句

1. The best thing to do when entering unknown territory is smile.

踏入未知地带最好的对策就是微笑。

来自美剧《凯莉日记》

2. When life gets hard and you want to give up, remember that life is full of ups and downs, and without the downs, the ups would mean nothing.

当生活很艰难，你想要放弃的时候，请记住，生活充满了起起落落，如果没有低谷，那站在高处也失去了意义。

来自

3. Good luck is when an opportunity comes along and you're prepared for it.

好运就是当机会来临时，你早已做好了准备。

来自金山词霸 每日一句

4. If you're lonely when you're alone, you're in bad company.--Jean Paul Sartre

如果你独处时感到寂寞，说明没有把自己陪好。

来自金山词霸 每日一句

5. The turning point in the process of growing up is when you discover the core of strength within you that survives all hurt.

当你从内心深处找到一种可以忍受一切痛苦的坚强力量时，你的成长历程就会出现飞跃。

来自金山词霸 每日一句

when 实用场景例句

When did you last see him?

你上次什么时候见到他的？

牛津词典

When can I see you?

我什么时候可以见你？

牛津词典

When (= in what circumstances) would such a solution be possible?

什么情况下可以这么解决？

牛津词典

Sunday is the only day when I can relax.

星期日是我唯一可以休息的日子。

牛津词典

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。

牛津词典

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。

牛津词典

Until when can you stay?

你可以待到什么时候？

牛津词典

‘I've got a new job. ’ ‘Since when? ’

“我有了份新工作。”“什么时候开始的？”

牛津词典

I loved history when I was at school.

我上学时喜欢历史。

牛津词典

Call me when you've finished.

你完成后就打电话给我。

牛津词典

Can you spare five minutes when it's convenient?

方便时能占用你五分钟时间吗？

牛津词典

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

他刚睡着电话铃就响了。

牛津词典

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？

牛津词典

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。

牛津词典

When are you going home?...

你什么时候回家？

柯林斯高阶英语词典

When did you get married?...

你什么时候结的婚？

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

I asked him when he'd be back to pick me up...

我问他什么时候回来接我。

柯林斯高阶英语词典

I don't know when the decision was made...

我不知道决定是什么时候作出的。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

How can I love myself when I look like this?...

我这个样子，怎么能对自己满意呢？

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典

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。

柯林斯高阶英语词典