canal aqueduct

例句：

1. 1. The ancient Romans built aqueducts to transport water from the Tiber River to their cities.
   古罗马人建造了输水管道，将泰博河的水输送到他们的城市。
2. 2.The construction of the aqueduct was completed ahead of schedule.
   输水管道的建设提前完成了。
3. 3. The aqueduct is an essential part of our city's infrastructure.
   输水管道是我们城市基础设施的重要组成部分。