背部重量主要是在胯骨上，有一個舒服的hip belt很重要。當然時間長，重，胯骨也會壓得疼。這時候胖點就看出好處了

來源: 羽絨服於 2024-01-04 11:57:40 [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.