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1.跑步机上慢跑
The treadmill is excellent for helping you to build up stamina. Each time you use it, increase this distance. Don't worry about your speed at first. You can increase that later.
跑步机是可以很好地给你精力的.每次用它.都要加长距离.起初先不要要求速度.以后慢慢增加.
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