我每天走萬米，翻山越嶺（小坡）花兩個小時，平地走應該可以節約二十分鍾。下班時可遇到不少跑步的，颼颼往前。。。

來源: 金筆於 2015-05-12 08:25:49 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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