我隻是比較那2門數學課，覺得沒必要put down小印。看到別人學得不好有那麽值得高興的嗎？

來源: 風景線2 於 2023-03-21 12:41:41 [舊帖] [給我悄悄話] 本文已被閱讀：次

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