This period of time can always go to bed 12 o 'clock because there are some things not done, had to wait until so late done, nor is it a good mental state.

这段时间总是要12点才能睡觉，因为还有些事没有做完，不得不拖到这么晚做完，精神状态也不是很好。

youdao

This period of time can always go to bed 12 o 'clock because there are some things not done, had to wait until so late done, nor is it a good mental state.

这段时间总是要12点才能睡觉，因为还有些事没有做完，不得不拖到这么晚做完，精神状态也不是很好。

youdao