補鈣。認識好幾個騎車摔跤骨折的了。都是下坡，都是超過40公裏的時速，摔折部位有肋骨，手腕，鎖骨

來源: 羽絨服於 2023-05-12 07:05:39 [舊帖] [給我悄悄話] 本文已被閱讀：次

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