到底是eye exercise还是eye exercises?
问题描述：
到底是eye exercise还是eye exercises?
参考书写得不一样,救命.
答
eye exercises
Exercise为"练习,锻炼"
当为"锻炼"时,如:"do exercise"不加”S”
当为”练习”时,如：”eye exercises,math exercises”加”S”
我自己打的,请选选噢