| 释义 |
whenn.（名词 noun）- 时间,日期,场合
the when and where [how] of …的时间和地点[方法].
conj.（连接词 conjunction）- 在…的时候,当…之时;一…就;每当
When it rains, I stay at home. 下雨时,我待在家里.
He looked in when (he was) passing. 他路过时顺便进来坐坐(与主句的主语一致时常省略主语和 be)
It is cold when it snows. 每逢下雪时天气都很冷. - 如果(= if)
You shall have it when you say “please”. 说声「请」就可以吃了.
I'll go when I've had dinner. 我吃完饭就去. - 然后
- 可是,却;虽然;尽管
He walks when he might ride. 他本可以坐车去的,他却走路[尽管他可以…]
When the dictator tried to impose his will on the people,he labelled them as rightists. 明明是这个独裁者想强迫人民接受他的意旨,他偏偏把他们打成右派. - 既然
How (can you) convince him when he will not listen? 既然他不听,(你)又怎么(能)说服他呢?
adv.（副词 adverb）- （疑问副词）(问时间)何时,什么时候(= at what time)
When can you come? 你什么时候能来?
I don't know when it was. 我不知道那是何时发生的.
When do you use the reflexive pronouns? 在什么情况下使用反身代名词? - (问情况)在何种情况下(= in what case)
- （用作代名词）什么时候(= what time)
From [Since] when...? 从什么时候…?
Until when can you stay? 你可以待到什么时候? - （关系副词; 限定用法）在…时候
It was a time when motorcars were rare. 那是汽车很少见的年代. - （非限定用法,亦即作为等立连词 =and at which time）那时
Come again tomorrow, when I shall have more time. 明天再来吧,明天我会有更多的时间.
I was going to reply, when he cut in. 我正要回答,他忽然插嘴说起来. - （用作关系代名词）那时(= which time)
He came on Monday, since when things have been better. 他是星期一来的,自那以后情况就好转了. - 在昔日[当年]的困难时候
I knew him when. 我是在当年困难时结识他的.
同义: - if如果
- at what time(问时间)何时,什么时候
- in what case(问情况)在何种情况下
- what time什么时候
- which time那时
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