應該小布這種做法，這題用方程感覺殺雞湧來用了牛刀，不過愛美麗這個歲數應該學方程了。

來源: 然後呢於 2024-10-09 12:17:33 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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