这个是肌肉组成，我心肺不强，这也解释了我每次跑步跑不下去时不是因为腿部肌肉，而是因为心跳

来源: WLRC 于 2022-11-29 17:58:43 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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