其實，美國的現狀是，青少年普遍熱衷於“在線”，放縱，缺乏戶外活動，身體素質不見得比中老年強多少。

來源: fuz 於 2021-04-05 11:55:09 [博客] [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.