since

[sɪns] 1. adv

1) (from then onwards) 此后 [cǐhòu]

They went to college together and have done business together since. — 他们一起上的大学并从此后一起做生意。

2) (latterly) 后来 [hòulái]

6,000 people were arrested, several hundred of whom have since been released. — 6000人被逮捕，其中几百人后来被释放。

2. prep

1) (from) 自...以来 [zì...yǐlái]

I've been here since the end of June. — 我自6月底以来一直在这儿。

2) (after) 从...以后 [cóng...yǐhòu]

I haven't seen powdered eggs since the war. — 自战后我从未见过鸡蛋粉。

3. conj

1) (from when) 自从 [zìcóng]

I've been wearing glasses since I was three. — 我从3岁起就戴眼镜。

2) (after) 从...以后 [cóng...yǐhòu]

So much has changed in the sport since I was a teenager. — 自我十几岁起，这项运动已经改变了很多。

3) (as) 因为 [yīnwèi]

Since it was Saturday, he stayed in bed an extra hour. — 因为是星期六，他在床上多呆了一小时。

* since then or ever since — 从那时起

* long since — 很久以前

••

for 用来表示过去、现在或将来某事持续的时间的长短，或未发生某事的时间的长短。She slept for eight hours...He will be away for three weeks...I hadn't seen him for four years. 表示某个时间段开始时，用 since。She has been with the group since it began...the first civilian president since the coup 17 years ago... since 还可以表示某事发生的最后时间，或者未发生某事的时间的长短。She hadn't eaten since breakfast...It was a long time since she had been to church.