drainage water

• 排水； 废水

drainage water的用法和样例：

例句

1. They are digging trenches to drain the water away.
   他们正在掘沟排水。
2. The drainage system has been aged.
   排水系统已经老化了。
3. The pipe leads waste water to a pool.
   这条管子把废水引向池子。
4. The latest water and waste treatment technology.
   最新水与废水处理技术。