roaded catchment

例句：

1. 1.The roaded catchment is a crucial part of the transportation network.
   道路流域是交通网络的重要组成部分。
2. 2.The watershed area around the city is expected to be expanded in the coming years.
   预计未来几年内，城市周围的水文区域将得到扩展。
3. 3. The roaded catchment plays a vital role in regulating the flow of water in the region.
   道路流域在该地区调节水流中起着至关重要的作用。