since/sɪns/

conj

1. 自…以来；从…以后

• Linda has written once since she left Beijing. 琳达离开北京后曾经来过一封信。

• It has been years since we enjoyed ourselves so much as today. 我们已经有许多年没有像今天这样玩得这么痛快了。

2. 因为；既然

• Since you have made up your mind, I won't say anything. 既然你已经决定了，我也就不再发表任何意见了。

• Since we don't have enough money, we have to rent a smaller apartment. 因为我们没有足够的钱，所以只好租一套小一点的房子。

词组ever since 从那时起至今日

• The soldier left two years ago and has been away ever since. 那战士两年前走了，此后就一直不曾回来。