百度上中文解释比较清楚，可能是忧郁症，也有可能是身体生理原因。

来源: FollowNature 于 2021-09-02 06:06:00 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.