所有的奧賽要想做好大學的敲門磚都是自學。現在小學四年級就起步了。這裏精英畫大餅，但很少說過程。

來源: TigerLady 於 2025-07-31 08:15:02 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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