I have lived with other roommates where they were not so clean.

我也和其他室友住过，他们可没那么爱干净。

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And if the other guy does tidy up, hey the room's clean, Who cares? So either way, you're not going to tidy up and you end up with a typical Yale dorm room.

要是别人打扫完了,屋子干净了,我赚了,最后谁都不去打扫寝室,寝室当然就脏了

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and then, you know, the trains are not so clean,

然后，你知道，火车不怎么干净，

利用大众交通工具吧 - SpeakingMax英语口语达人