when
英式音标：[wen] 美式音标：[wɛn]
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.
when怎么读
英式音标：[wen]
美式音标：[wɛn]
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的意思释义
adv.
什么时候；（用于时间的表达方式之后）在那时；其时；当时
conj.
在…时；既然；如果；
pron.
什么时候；那时；
n.
时间，时候；日期；场合；
双语释义
adv.(副词)什么时候 at what time
在那时,其时 at or on which
conj.(连词)在…时,当时 at or during the time that
如果,要是if
既然,考虑到 since; considering that
英英释义
When\"When\"- a song by French singer Amanda Lear released in 1980 by Ariola Records.
when用法及例句
同近义词辨析
when, as, whilewhen从句动词点动词，持续性动词均可，
as重在表示动作同时发生，伴随进行，
while 从句动词为持续性动词 While I slept, a thief broke in.
双语例句
用作副词(adv.)
When did that happen?
那件事是什么时候发生的？
They stood respectfully when he entered the room.
当他走进房间时，他们都恭恭敬敬地站着。
Iron will melt when it is made very hot.
当铁烧得很热时就会熔化的。
用作连词(conj.)
And they roared when Seaman held up two fingers.
然后当希曼伸出两根指头的时候他们就吼叫起来。
I stayed till noon, when I went home.
我留到中午，然后就回家了。
When all is said and done,we still must eat.
可是说到底，我们还得吃饭。
But when I returned the door was open.
可是回来时门是开着的。
How can they learn anything when they spend all their spare time watching television?
他们把所有的空闲时间都用来看电视了，还能学什麽东西呢？
It was the sort of morning when everything goes wrong.
那天上午就是那样，事事不顺心。
He entered on his inheritance when he was 21.
他21岁时继承了财产。
例句参考
When Is “Nearest Neighbor” Meaningful?When New Technologies Cause Great Firms to Fail
Leadership when there is no one to ask: Welcome to the experience economy
When Employees Feel Betrayed: A Model of How Psychological Contract Violation Develops
Estimating Survivorship when the Subjects are Visited Periodically
Time flies when you\'re having fun: cognitive absorption and beliefs about information technology usage 1
From inflammation to sickness and depression: when the immune system subjugates the brain.
On Limits of Wireless Communications in a Fading Environment when UsingMultiple Antennas
Foschini Jr., “Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas
The Wisconsin Epidemiologic Study of Diabetic Retinopathy: II. Prevalence and Risk of Diabetic Retinopathy When Age at Diagnosis Is ...
when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相关例句
1. Do you know when they hooked up?
你知道他们什么时候结的婚吗?
《21世纪大英汉词典》
2. He looked aside when I spoke to him.
我对他说话的时候，他向旁边看。
《新英汉大辞典》
3. Your mother will bawl you out when she sees this mess.
当你母亲看到这混乱的*面时她会责骂你的。
《21世纪大英汉词典》
4. She smiles when you praise her.
每当你夸她的时候她就笑。
《21世纪大英汉词典》
5. He blushed when they praised him.
当他们表扬他时(他)脸红了。
《21世纪大英汉词典》
6. He told us when to eat.
他告诉我们什么时候吃饭。
《21世纪大英汉词典》
7. When will you have my car over?
你什么时候能把我的车修理好?
《21世纪大英汉词典》
8. When they began to talk about him he pricked his ears.
当他们开始议论到他时，他竖起了耳朵。
《21世纪大英汉词典》
9. I should be instructed when to start.
应当通知我出发的时间。
《21世纪大英汉词典》
10. Her eyes blazed when she saw him cheating.
当她看见他行骗时，她双眼直冒火。
《21世纪大英汉词典》
11. His head swung when he talked to me.
他在跟我聊天时他的头来回摇动着。
《21世纪大英汉词典》
12. She looked me straight through when I greeted her.
我跟她打招呼时她故意不理睬我。
《21世纪大英汉词典》
13. When off duty I can do my private work.
不上班的时候我可以做自己的事了。
《新英汉大辞典》
14. When he joined in the boxing I used to second him.
在他参加拳击比赛期间，我一直是他的拳击指导。
《21世纪大英汉词典》
15. She was reaching out for the boy when he danced away from her.
正当她伸手去抓那男孩时，男孩跳跳蹦蹦地跑开了。
《21世纪大英汉词典》
16. He never overcharged when I went shopping in his grocer.
我去他的杂货店买东西时他从不向我乱索价。
《21世纪大英汉词典》
17. I dived in when the game started.
游戏开始时我就参加进去了。
《21世纪大英汉词典》
18. She mudded herself when running in the rain.
她在雨中奔跑时溅了自己一身泥。
《21世纪大英汉词典》
19. When I was telephoning her,she bundled in.
当我正给她打电话时，她闯了进来。
《21世纪大英汉词典》
20. The drink fizzes up when you first pour it.
你初倒这种饮料时，它会嘶嘶冒泡。
《21世纪大英汉词典》
21. The paper ignited when the spark fell on it.
当火星落在那张纸上时，它立即燃烧起来。
《21世纪大英汉词典》
22. People hooted at the speaker when he began to explain his policy.
当他开始解释他的*策时，人们嘘叫着表示反对。
《21世纪大英汉词典》
23. We chanced to be out when she called.
她来电话时，恰巧我们没在家。
《21世纪大英汉词典》
24. He dodged when the police fired at him.
**向他开*时，他躲开了。
《新英汉大辞典》
25. He surfed her car to force her stop the car when she drove off.
她驾车离开时他趴在她的车顶上，以迫使她停下车来。
《21世纪大英汉词典》
26. He jumped with joy when he heard the good news.
当他听到这一好消息时高兴得跳了起来。
《21世纪大英汉词典》
27. He was dozing in the hammock when I called.
当我造访时他正在帆布吊床上打瞌睡。
《21世纪大英汉词典》
28. The champagne cork popped when he pulled it out.
他拔香槟酒的瓶塞时它砰的一声开了。
《21世纪大英汉词典》
29. When rolling down the hill, he snatched at a rock.
在向山下滚的过程中，他一把抓住了一块岩石。
《21世纪大英汉词典》
30. When you called me, we were schmoozing.
你给我打电话时，我们正在聊天。
《21世纪大英汉词典》
31.When to violate guidelines
什么时候打破规则
-- 来源 -- About Face 3交互设计精髓
32.When we tell our word processor to print a document, it doesn’t tell us when the paper supply is low, or when 40 other documents are queued up before us, or when another nearby printer is free.
当我们告诉文字处理器打印一份文档时，它不会告诉我们打印纸不够了。 也不会告诉我们前面有40份文档在排队等待打印，或附近另一台打印机空闲，而一个乐于助人的人会告诉我们这些。
-- 来源 -- About Face 3交互设计精髓
33.Considerate products know when to bend the rules
体贴的软件知道什么时候调整规则
-- 来源 -- About Face 3交互设计精髓
34.Where is it kept when not in immediate use?
在不是立即需要使用时，这个设备如何放置？
-- 来源 -- About Face 3交互设计精髓
35.When to test: Summative and formative evaluations
测试的时机为总结式和进展式评估
-- 来源 -- About Face 3交互设计精髓
36.Disable menu items when they are not applicable.
禁用不适用的菜单项。
-- 来源 -- About Face 3交互设计精髓
37.When rigorous personas aren’t possible: Provisional personas
当没有条件创建严谨的人物角色时：即兴、临时的人物角色
-- 来源 -- About Face 3交互设计精髓
38.When interviewing customers, you will want to understand:
与顾客访谈时，你想了解如下问题。
-- 来源 -- About Face 3交互设计精髓
39.The answer is when, and only when, we have a very good reason.
答案是，当我们有充分理由时，也只有在这时才可以。
-- 来源 -- About Face 3交互设计精髓
40.Is it when a new idiom is measurably better?
只有当证明了一个新的习惯用法更好时吗？
-- 来源 -- About Face 3交互设计精髓
