丹尼尔：哇，你的室友正在打扫房间。
Daniel: Wow, your roommates are cleaning the room.
youdao
当我回家时，看到妈妈正在打扫房间，我很抱歉。
When I go home, I see my mother is cleaning the house, I am so sorry to her.
正在打扫房间。
Cleaning their rooms.
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