actually, I run 4 miles in 30min, and then muscle training and


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送交者: steven 于 2005-12-22, 21:46:51:

回答: 跑3英里需要30分钟，按照美国心脏学会AHA每周三次三十分钟的锻练还只是MINIMUM要求 由 HunHunSheng 于 2005-12-22, 21:43:07:

swimming. It is about hour and a half total.


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