since
since
preposition, conjunction& adverb
preposition, conjunction& adverb
- in the intervening period between (the time mentioned) and the time under consideration, typically the present
自从；从那以后，此后
[as prep.]she has suffered from cystic fibrosis since 1984.
她自1984年起，就得了囊肿性纤维化病。
the worst property slump since the war.
自战争以来最严重的房地产衰退。
I've felt better since I've been here.
自从我到这儿之后，感觉好多了。
[as adv.]she ran away on Friday and we haven't seen her since.
她星期五逃走了，自那以后我们再也没有看见她。 - [conjunction]for the reason that; because
既然；因为
delegates were delighted, since better protection of rhino reserves will help protect other rare species.
代表们很高兴，因为对犀牛保护区的更好保护将有助于保护其他珍稀物种。 - [adverb]ago
之前，以前
the settlement had vanished long since.
这个小居民点很久以前就消失了。
- late Middle English: contraction of obsolete sithence, or from dialect sin (both from dialect sithen 'thereupon, afterwards, ever since')
考试词汇表
