短語(yǔ)詞組短語(yǔ)PCC enclosing structure PCC 樁結(jié)搆圍堤space e enclosing structure 圍護(hù)結(jié)搆ace enclosing structure 圍護(hù)結(jié)搆space enclosing structure 圍護(hù)結(jié)搆 返回 enclosing structure