physical exercise 和physical exercises的区别是?何时用physical exercise,何时用physical exercises?
问题描述：
physical exercise 和physical exercises的区别是?何时用physical exercise,何时用physical exercises?
答
physical exercise和physical exercises都可指体育运动!因为exercise做运动讲的时候既可做可数名词,也可以做不可数名词!
而physical exercise还有另外一个意思就是指身体检查!exercise有检查的意思.
至于怎么用,就看上下文的意思咯!