large-scale urban traffic engineering project
rights of taking part in urban traffic
rural-urban (urban-rural) continuum
The problem of urban traffic
three-dimensional urban traffic
underground urban traffic tunnel
Urban Railway
城市轨道交通
城市轨道
城市铁路
轨道交通
地铁
市区铁路
轻轨铁路
urban railway joint terminal
urban railway passenger car
Urban Railway Passenger Cars
Urban Railway Transportation
urban railway transportation vehicle