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看照片好像是表面浅缝,只要不是内外穿透的,涂了防水COATING後应无问题。你再细心CHECK一下。如果仍不放心,只能HIRE A 3RD PARTY PROFESSIONAL TO LOOK AT IT。
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如果是穿透的,快快HIRE PROFESSIONALS TO LOOK AT IT AND DEAL WITH THE BUILDER 你自己不容易说服BUILDER,9 OUT OF 10会敷衍了事。