短語(yǔ)詞組短語(yǔ)Preparatory work before construction 墻紙施工前的準(zhǔn)備工作preparatory work for construction 施工準(zhǔn)備Construction preparatory 建筑工程預(yù)科Chuan -Kang Construction Preparatory Association 川康建設(shè)期成會(huì) 返回 preparatory construction