urbanisevt.使都市化；使文雅=urbanize(美).urbanadj.城市的；都市的urban-rural green space城乡绿色空间urban original wastewater城市原生污水urban- based university城市型大学urban and rural libraries城乡图书馆urban population increase城市人口增长urban rail transportation城市轨道交通urban inhabitants culture市民文化Urban Information Systems城市信息系统Urban-Landmark-System城市地标系统Urbanrural dual structure城乡二元结构