existing urban bridge

• 既有城市桥梁

existing urban bridge的用法和样例：

例句

1. At the same time, strengthen the supervision spillover overloading of vehicles across the bridge, the bridge project to ensure the use of safe cities.
   同时，加强对超限超载车辆过桥的监管力度，确保城市桥梁工程的使用安全。