french drain, 又在它上方坡上斜挖了一道溝把地麵水引走,又把地基部位清理砌了水泥,情況好多了。
french drain, 又在它上方坡上斜挖了一道溝把地麵水引走,又把地基部位清理砌了水泥,情況好多了。
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