如果冬天，土上凍的話，建磚牆會非常COSTY。因為，磚牆的地基必須和冬天的FROST LINE 一樣深。

來源: linhaixy 於 2018-05-09 13:19:46 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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