drainage

名词 drainage:

1. emptying something accomplished by allowing liquid to run out of it
   同义词：drain

1. A long narrow trench or furrow dug in the ground, as for irrigation, drainage, or a boundary line.
   沟渠，排水沟，水道在地面上狭长的沟渠或细沟，用于灌溉、排水或用作分界线
2. He came to look at the drainage.
   他是来检查排水设备的。
3. The city was even equipped with a drainage system, for a great many clay pipes were found beneath the narrow streets.
   这座城市甚至还敷设过排水系统，因为在窄窄的街道底下发现了许多陶土制的管道。
4. The drainage system has been aged.
   排水系统已经老化了。