肯定都評估過，加大排水的代價遠大於偶爾局部被淹的代價，從能防3年一遇的暴雨到防十年一遇的暴雨就是得耗巨資，但還得被淹

來源: 21-C 於 2024-07-15 05:03:33 [舊帖] [給我悄悄話] 本文已被閱讀：次

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