我借用一句楊振寧的話“有意義的事，很少沒有痛苦的。”

來源: 馮墟於 2023-02-05 08:52:20 [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.