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- 我们不是正在打扫房间。
We are not cleaning the room.
- 他昨天没打扫房间。
He didn't clean the room yesterday.
- 他昨天打扫房间吗？
Did he clean the room yesterday?
- 学生们每天轮流打扫教室。
The students clean the classroom everyday in turn.
- 他们叫这个女孩打扫地板。
They had/made the girl clean the floor.
- 屋子里里外外都打扫得很干净。
The house has been given a thorough cleaning, inside and outside.
- 她把地板打扫干净。
She swept the floor clean.
- 房屋不经常打扫，尘土很快就越积越多。
Dust and dirt soon accumulate if a house is not cleaned regularly.
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