since

US /sɪns/
UK /sɪns/
"since" picture
1.

自從, 從

from a definite past time until now

:
I haven't seen her since last year.
自從去年就沒見過她了。
He has been working here since 2010.
2010年起就在這裡工作了。
1.

自從

from the time when

:
It's been a long time since we last met.
自從我們上次見面以來,已經很久了。
Many things have changed since I left.
自從我離開後,很多事情都變了。
2.

既然, 因為

because; as

:
Since you're busy, I'll leave now.
既然你很忙,我現在就走了。
Since it's raining, we should stay inside.
既然下雨了,我們應該待在室內。
1.

從那以後

from that time until now

:
He moved away, and I haven't seen him since.
他搬走了,從那以後我就沒見過他。
She got a new job and has been much happier since.
她找到了一份新工作,從那以後她快樂多了。