肩寬窄引體向上練的不是背部肌肉，是大部分用手臂肌肉，如果目的的話。

來源: seasnowman 於 2025-01-25 09:51:00 [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.