攻城不怕堅，攻書莫畏難；科學有險阻，苦戰能過關。

來源: Katrina2005 於 2021-02-12 17:06:24 [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.