高架铁道

例句：

1. 1. The high-speed trains run on the elevated railway.
   高速列车在高架铁路上运行。
2. 2. The construction of the new high-speed rail line is underway.
   新高速铁路线的建设正在进行中。
3. 3. The elevated railway provides a convenient way to travel between cities.
   高架铁路为城市间的旅行提供了便利的通道。