it was sunday,a never get up early on sundays.sunday为什么要加S上面打错一个字,it was sunday,I never get up early on sundays.sunday为什么要加S

问题描述:

it was sunday,a never get up early on sundays.sunday为什么要加S
上面打错一个字,
it was sunday,I never get up early on sundays.sunday为什么要加S

所有的星期天都不早起,并不是特指某一个星期天不早起