每年如此。
农民常年挑胆子就没有这个问题
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背包徒步几个小时,肩膀不应该疼,否则太辛苦了。腹部那根背包带就是减轻肩上重量的。肩膀那里应该是松的。
-AprilMei-
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09/10/2023 postreply
10:44:10
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