9：30开始，每个“家庭”转移到一个教室，呆上两小时。

At 9.30am, each family is moved into a classroom for two hours.

youdao

他们正在教室里做家庭作业。

They are doing their homework in the classroom.

youdao

昨天下午放学后，那些小孩们做了家庭作业、打扫完教室，然后就回家了。

Those kids did their homework after school yesterday afternoon, cleaned the classroom and went home.

youdao

昨天下午放学后，那些小孩们做了家庭作业、打扫完教室，然后就回家了。

Those kids did their homework after school yesterday afternoon, cleaned the classroom and went home.

youdao