独自一个人锻炼可能会很无聊。
有些人认为锻炼是很浪费时间的，因为那是应该用于学习的时间。
Some people think that doing exercise waste of time which should be spent in study.
我总是看到一些人骑自行车来锻炼他们的身体，他们是一群人，看起来很健美，从他们的体型就可以看出来。
I always see some people riding the bicycle to exercise their bodies, they are group and look so fit, I can tell from their body shapes.
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