- 他们已经开始防止犯罪行为。
They have begun to do the prevention of crime.
- 到了这里一个月以后,学生们开始想家了。
The students began to feel homesick after they had been here for a month.
- 当他平静下来时,我开始告诉他实情。
When he quieted down, I began to tell him the truth.
- 明天开始挖掘工作。
Excavation of the site will begin tomorrow.
- 事情以玩笑开始,以悲剧告终。
It began as a jest and ended as a tragedy.
- 他是去年六月开始在这里工作的。
He started work here last June.
- 步行了四个小时以后,我们开始累了。
After walking for four hours we were beginning to flag.
- 树叶已开始变色,很快就是冬天了。
The leaves have started to color; it will soon be winter.