I will do more exercise every day为什么exercise不加s?do morning exercises every day为什么这里exercise又加s?

问题描述:

I will do more exercise every day为什么exercise不加s?
do morning exercises every day为什么这里exercise又加s?

exercise做锻炼讲时是不可数的,但是在早操这个固定用法中就是要加s的,你记住这个用法就可以