“立交桥”怎么读

“立交桥”的英语可以翻译为：(grade separation) viaduct，overpass，flyover，cloverleaf junction，intersection ...

我步行穿过那条公路上面的立交桥.I walked through an overpass over the road.立交桥改变了城市的面貌。Flyovers have changed the face of the city.那座正在兴建的立交桥是一位年轻人设计的.The cloverleaf intersection being built is designed by a young man....