我爹年轻工作的时候,常常要背着几十斤重的仪器一天走三十多英里。现在八十了,每天走三到五英里。一点关节问题都没有。
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy