打扫好房间后，人们通常会好好布置一下屋子来迎接新年。

After cleaning, people will decorate the house to welcome the New Year.

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比如，为了能在外多呆一个小时，你愿意打扫你的房间，这样你和你父母能达成一个好的交易，而相互退让。

For example, if you are willing to clean your room in order to stay out an hour later, both you and your parents walk away with a good deal.

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那个房间这星期得腾出打扫好。

That room will have to be cleared out and tidied up this week.

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How many of you have a written contract, stuck with a magnet on the fridge, telling you when you're supposed to tidy up.

有人写过协议吗,在冰箱上贴个磁力贴,规定好什么时候该谁打扫房间

耶鲁公开课 - 博弈论课程节选