During this mock exercise, water is used instead of chemicals to decontaminate people who play the role of survivors.

VOA: standard.2010.07.21

I will be posting code that you can play with, and I suggest you go through exactly this kind of exercise.

我给你一些你用的上的代码，我建议你们,多进行一些这种实验。

麻省理工公开课 - 计算机科学及编程导论课程节选

I just want to exercise or something I'll go and play soccer, basketball, dodge ball, things like that.

我想锻炼的时候我就去踢足球、打篮球、打躲避球，这一类的。

我喜欢运动 - SpeakingMax英语口语达人

Well, one way to understand what's good to eat for you is first to know a little bit about what you're eating, and that's where that daily plate exercise came into play.

要想了解吃什么好,方法之一是,首先了解一下你吃的是什么,在这里日常饮食规则将发挥作用

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选