since
01
自从, 自...以来
used to express a period from a specific past time up to now or another specified point
例子
I 've been very tired since I started the new job.
自从我开始新工作以来,我一直很累。
例子
She has been working at the company ever since she graduated.
她自从毕业以来一直在公司工作。
例子
She could n't attend the party since she had a prior commitment.
她没能参加派对,因为她事先有约。
since
01
自那时起, 从那时起
from a specific point in the past until the present time
例子
The restaurant opened last year, and it has been popular since.
这家餐厅去年开业,自那以来一直很受欢迎。
例子
I've long since forgotten any Latin I ever learned.
我早已忘记了我学过的任何拉丁语。



























