if中文什么意思

短语和例子
If they had only arrived earlier! 要是他们当初早点来就好了。 as if 活像 ( as if he had seen it 活像他见过似的)。 if a day [an inch etc.] 无论如何应该是…；至少有… ( He is seventy if (he is) a day (old). 他该有七十岁了。 The enemy is 2000 strong if a man. 敌人至少有二千人。 I've come three miles if ( I've come) a yard. 我走了该有三英里了)。 if and when 1. ＝ if. 2. ＝ when. if any 即使有也(极少) ( There is little if any hope. 希望极少)。 if anything 甚至可能，或许甚至。 if it were not for ＝ if it had not been for 若不是…的话。 if necessary 如有必要。 if not 要是不，即使不。 if only 1. 只要。 2. 要是…就好 ( If only it clears up, we'll go. 只要天一晴，我们就去。 If only he arrives in time! 他要是能及时赶到就好了!) if possible 如果可能。 if so 如果这样。 if so be that ＝ if. if you please [will] 1. 请。 2. 〔戏谑语〕如何〔问人意向〕。 What (matters it) ifI fail ! 失败算什么〔cf. what〕。 What (would happen) if you should fail! 你要是失败了怎么办〔那就糟了〕!n.
条件，设想。 Dash these ifs! 让这一大堆“如果”见鬼去吧! There is no if in the case. 这里没有假定的余地。 Your argument seems to have too many ifs. 你的论据似乎假设太多。

例句与用法

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1. He wondered if he had been dreaming .
   他不晓得自己是不是做了一场梦。
2. You talk as if there were dangers .
   你讲话好像有什么要大祸临头似的。
3. If you do not play , you will get out of practice .
   不练习就会荒疏。
4. If you're a good fellow you cooperate .
   要做个好伙伴，就要懂得合群。
5. If you make a promise , you should carry it out .
   既然许愿就要还愿。

百科释义

If is a conjunction used in English conditional sentences.