since

since是什么意思，since怎么读 语音:
英音  [s?ns] 
美音  [s?ns] 

• 基本解释

prep. 从…以来；自从…之后；自从
adv. 以后，此后；后来；（距今几年）以前；（从那时候起几年）以前
conj. 自从…以来；自从…的时候起；既然；因为

• 速记技巧

• 中文词源

• 双语例句

用作连词(conj.)

1. He must have taken the book since it isn't here.
   他一定是把书拿走了,因为书已不在这里了。
2. Since you can't answer the question, perhaps we'd better ask someone else.
   既然你无法回答这个问题，我们最好再问问别人。
3. He had spoken to her only once since the party.
   自从那次聚会以来,他只跟她说过一次话。

用作介词(prep.)

1. She's so easily fatigued since her illness.
   自从病后，她很容易疲劳。
2. She hasn't been out riding since the accident.
   她自从出了事故以后，一直没有骑马外出过。

用作副词(adv.)

1. Bows and arrows have long since been out of use.
   弓箭很早以前就没人使用了。
2. He left home two weeks ago and we haven't heard from him since.
   他两星期以前离开了家，到现在我们一直没有他的消息。

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