题目

英语翻译
开头是这样的How much sleep do we need?We are all different.Some people need only three hours of sleep a night.

提问时间：2020-06-19

答案

How much sleep do we need?We are all different.Some people need only three or four hours of sleep a night.Others need ten hours of sleep a night.Most Americans sleep an average of seven to eight hours...