给水管

例句：

1. 1. The city has a network of underground pipes for its water supply.
   这个城市有一套地下管道系统用于供水。
2. 2. The construction crew is installing new pipes to improve the water supply system.
   施工队正在安装新的管道来改善供水系统。
3. 3. The old pipes in the basement were leaking, so we had to replace them with new ones.
   地下室的旧管道漏水了，所以我们不得不用新的管道替换它们。