excercise与excerises的区别

excercise释义：

练习

例句：

Exercise of the mental faculties is as important as bodily excercise.

智能的锻炼同身体的运动同样重要。

excerises释义：

n. 练习题，演习运动

例句：

Her joints ache if she exercises.

她的关节一运动就疼。

词组：

eye exercises眼保健操