So exactly how much exercise do you need to do to gain all of these great health effects?

VOA: special.2010.06.08

So I need to do something intelligent to exercise my brain.

所以我得做点开动脑筋的事情让大脑也得到锻炼。

I feel like 实战 - SpeakingMax英语口语达人

And we need to go through all their meds, all their organ systems, their exercise, how they're functioning."

VOA: special.2011.07.26

Some people may need to take medicines before they work hard or exercise.

VOA: special.2009.07.28

"Our anticipation is that it will be another seven to ten days to complete all of the preparations that we need to exercise this option and then at that point, we'll pump the kill mud and hopefully have this well killed, and well shut off, and the flow shut off."

VOA: standard.2010.05.17