大雨可先看一下後院的grading。一般雨水積到院中間從側院導向前院公共排水溝。側院前院同理。小雨問題不大。

來源: IEbird 於 2024-04-06 14:54:16 [舊帖] [給我悄悄話] 本文已被閱讀：次

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