背20以下,每天走25邁以下,沒什麽問題。重了或距離長了,問題就來了。就好比跑步,五邁十邁半馬怎麽都行。到了馬拉鬆或超馬,各種問題就來了。
背20以下,每天走25邁以下,沒什麽問題。重了或距離長了,問題就來了。就好比跑步,五邁十邁半馬怎麽都行。到了馬拉鬆或超馬,各種問題就來了。
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