8小时英文

Every day we need to sleep more than eight hours。分分就给我吧~~~~

是同一个单位，一个是用字母表示，一个使用汉字表示，但都是小时，单位是一样的

Every day we need to sleep for more than 8 hours.===It is necessary for us to sleep for more than 8 hours every day. ====We need more than 8 hours' sleep every day.

We need more than 8 hours sleeping every day.或We need to sleep more than 8 hours every day.

一般在数学上h就是代表着小时所以说八小时的h的表示和八小时的字。

h是英语小时hour的第一个字母，翻译成中文是小时，所以是一样的。