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 felt better since I've been here.
我来到这里之后感觉好多了。
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
I have been feeling much better ever since I started exercising regularly.
自从我开始定期锻炼以来,我感觉好多了。
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
I did n't eat dessert since I'm on a diet.
我没有吃甜点,因为我在节食。
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
He started studying medicine in 2005 and has been practicing as a doctor since.
他于2005年开始学医,自那时起一直从事医生工作。
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
The settlement had vanished long since.
定居点早已 自 消失。
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。



























