我们每天要睡八个小时，让自己有个好心情。心旷神怡，事事顺利——这可是我们大家都熟悉的一句谚语。
We should sleep eight hours and make ourselves in good moods every day. A merry heart goes all the way, which is a saying we are all familiar with.
心旷神怡，事事顺利——这可是我们大家都熟悉的一句谚语。
A merry heart goes all the way, which is a saying we are all familiar with.
心旷神怡，事事顺利——这可是我们大家都熟悉的一句谚语。
A merry heart goes all the way, which is a saying we are all familiar with.
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