since
「since」的意思
prep. 自……以后，自……以来；（表示气愤）何曾，什么时候; conj. 在……以后，自……以来...
adv.以后,后来,以前 prep.自从,自...以来 conj.自...以后,自...以来,因为,既然
「since」的用法
since自，从 - 表示时间的起点或持续时间的开始。
「since」的例句
I have been studying since morning.
我从早上开始学习。
We have been working since last week.
我们从上周开始工作。
The meeting will start since 3 PM.
会议将在下午3点开始。
Since the rain started, we have been waiting for it to stop.
自从下雨开始，我们一直在等待它停止。
She has been practicing English since she came to China.
她自从来中国以来一直在练习英语。
The project has been ongoing since last year.
这个项目从去年开始一直进行。
Since then, we have made great progress.
从那时起，我们取得了很大的进展。
I have lived in this city since I was a child.
我从小就在这个城市生活。
Since the accident, he has been unable to walk.
自从那次事故后，他一直无法走路。
The concert will be held since next week.
音乐会将在下周举行。