每年如此。
農民常年挑膽子就沒有這個問題
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背包徒步幾個小時,肩膀不應該疼,否則太辛苦了。腹部那根背包帶就是減輕肩上重量的。肩膀那裏應該是鬆的。
-AprilMei-
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09/10/2023 postreply
10:44:10
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