The Exercise about Circle 圆的练习
About Exercise 有关锻炼
The Truth about Exercise 运动的真义 ; 锻炼的真相 ; 关于锻炼的真相
About Doing Physical Exercise 关于体育锻炼
exercise for about 30 minutes 锻炼约30分钟
Discussions about an exercise 从一道习题谈起
There is a debate about whether or not swimming burns as many calories as other forms of exercise.
VOA: special.2010.06.08
Without worrying about the economics of it a second, how would we find that just as a math exercise?
不需要考虑经济学的理论,用数学的方法怎么来求解啊
That really wasn't meant to be hard, but what's relevant about this exercise is not the fact that it's hard.
这应该并不难,与此相关的东西,事实上并不难
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