那你也不该和跑马拉松的比安全而是和coubert这样的在田径场上跑10圈的人比
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送交者: HunHunSheng 于 2007-08-07, 09:47:44:
回答: 我就不会到马路上骑自行车，只在trail里骑。 所以你的统计数字对我没用。 由 湘女 于 2007-08-07, 09:23:34:
a marathon(26.2 miles) is equivalent to 112 miles of biking. and that also mean biking very hard. If you
only bike for 6 miles at easy speed, you should
compare with running 1.5 miles at easy pace.
I think 1,5 mile running is much safer
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