李醫生說的有道理。 不要彎腰， 直腰下蹲， 腿部發力
鍛煉腰肌，背部肌肉
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2026 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy
