短語詞組短語primary distributor road 主配水琯primary y distributor road 市區(qū)乾道external distributor road 外直逕local l distributor road 地方乾路local distributor road detail 地方乾路lcollector -distributor road 集散道primary distributor road detail 主要乾路external l distributor road 外乾路 返回 distributor road