pedestrian subway

例句：

1. 1.The pedestrian subway is a popular way to get around the city.
   人行天桥是城市中流行的一种出行方式。
2. 2.The pedestrian subway provides easy access to the downtown area.
   人行天桥为市中心区域提供了便捷的通行途径。
3. 3.During rush hour, the pedestrian subway can be crowded with people.
   在高峰时段，人行天桥上挤满了人。