exercise
/ˈek.sɚ.saɪz/
名词
体育活动；锻炼；运动
Swimming is my favourite form of exercise.
我最喜欢的锻炼方式是游泳。
行使；运用；使用
The exercise of restraint may well be difficult.
保持克制可能是件很难的事。
练习；训练；演习
It would be a useful exercise for you to say the speech aloud several times.
大声朗读几遍演讲稿，将会有助于你发挥。