drainage channel

• 排水渠道,排水沟

drainage channel的用法和样例：

例句

1. Alongside each irrigation canal a drainage ditch was dug.
   沿着每一条灌溉渠，他们还挖了一条排水沟。
2. Officers finally used a lasso and metal poles to coax the alligator into a drainage ditch leading to a lake.
   警员最后利用一个套索与金属竿，把鳄鱼诱往连结湖泊的排水沟。