canal

柯林斯詞典

1. N-COUNT A canal is a long, narrow stretch of water that has been made for boats to travel along or to bring water to a particular area. 運(yùn)河
...the Grand Union Canal. …大聯(lián)盟運(yùn)河。
2. N-COUNT A canal is a narrow tube inside your body for carrying food, air, or other substances. (體內(nèi)的) 管道
...delaying its progress through the alimentary canal. …通過(guò)消化道延遲它的作用。

They found the man's body after dragging the canal.
They have to dredge the canal regularly to keep it open .
She lives in a narrow boat on a canal.
We walked along the canal for a couple of miles .
In order to turn the deserts into fertile and productive land , engineers built an 800-mile canal.