小孩子很容易做，老了控製不住平衡。過去，中土管這個叫“單腿（直）蹲”。俺曾能做十個，現在蹲下起不來了

來源: fuz 於 2023-07-10 21:05:03 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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