我在北大每周需要上一門課，每次下課，放眼一望，感覺就是赤腳走在田埂上，全是小老頭，：）

來源: heka 於 2025-10-15 12:42:54 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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