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？
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。
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。
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？”
I loved history when I was at school.
我上学时喜欢历史。
Call me when you've finished.
你完成后就打电话给我。
Can you spare five minutes when it's convenient?
方便时能占用你五分钟时间吗？
He had just drifted off to sleep when the phone rang.
他刚睡着电话铃就响了。
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？
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。
1.什么时候,几时
2.当...的时候
3.从前境况差时
1.如果
2.既然
3.可是,却
4.然后
5.当...的时候
6.(刚)...就...
1.如果
2.既然
3.可是,却
4.然后
5.当...的时候
6.(刚)...就...
1.什么时候
2.那时
1.时候,时间,日期,场合
1.used for asking at what time something happens; used for asking in what kind of situation something happens; used when someone knows or says at what time something happens, or in what situation it happens
2.as soon as another action or event has finished; at the same time as something else; at a point during the time that something else is happening
3.used for talking about a particular time or situation
4.used for introducing a situation that makes someone’s action or behavior seem surprising
5.used for making a general statement about something that is always true or correct
1.used for asking at what time something happens; used for asking in what kind of situation something happens; used when someone knows or says at what time something happens, or in what situation it happens
2.as soon as another action or event has finished; at the same time as something else; at a point during the time that something else is happening
3.used for talking about a particular time or situation
4.used for introducing a situation that makes someone’s action or behavior seem surprising
5.used for making a general statement about something that is always true or correct
1.I am strong, when I am on your shoulders; You raise me up. . . To more than I can be.
当我靠在你的肩上时，我是坚强的；你鼓舞了我…让我能超越自己。
2.It's like Brazil. When your fans have been used to you winning everything they expect you to go on and do so.
就像巴西队一样，当你的球迷习惯于你赢得一切，他们会希望胜利就这样一直延续下去。
3.When he had rejoined them, he gave the coffer to one of them to carry.
赶上他们，他把匣子交给他们中的一个背着。
4.I've had this feeling for many years but when I examine it I don't seem to be able to touch it.
多年来我一直有这种感觉，但是当我审视它时，我似乎无法触及它。
5.The Scots too seem to have received the bad part of the bargain when they dissolved their Parliament and joined England.
无独有偶，苏格兰人也是讨价还价中吃亏的那一方，他们解散了议会，加入了英国。
6.The solution was to go to bed when I'm sleepy (and only when I'm sleepy) and get up with an alarm clock at a fixed time (7 days per week).
解决的方案是当我感到瞌睡的时候就去睡觉（只有当我感到瞌睡的时候），然后在每天的固定时间（每周七天）设置闹钟，响了就立刻起床。
7.That was one of the first things I learned about him when we married thirty-one years ago.
我对他【的第一次了解（最初了解的一个方面）】还是当我们三十年前结婚的时候。
8.When they seek medical treatment in many hospitals because it was all over the eye of a needle, the doctor caused the alert.
在多家医院就诊时，因其身上遍布的针眼，引起医生警觉。
9.He falls and hangs when his hand hurts, but, in less than 15 minutes, Graham has made his way up a possible . 14b.
手痛的时候他会脱手冲坠，或者悬吊在空中，不过不到15分钟，他就爬到了这条14b的顶点。
10.Depending on your type of application, it is possible to have improved performance when implementing this technique.
根据您的应用程序的类型，在实现这种技术时可以提高性能。