ditch
单词辨析：
指排水或废液的管道。
There's something wrong with the drains.
下水道出了问题。
He has no time to repair the blocked drain.
他没时间修理堵塞的排水管。
尤指挖于地上供水流通的沟渠。
drainage channels in the farmland
农田里的排水沟
They are digging irrigation channels.
他们正在挖灌溉渠。
指挖于田边、路边等处用于蓄水或排水的沟。
He fell into the ditch in the dark.
黑暗中他掉进了沟里。
There is some rainwater in the ditch along the side of the road.
路边的沟里积了些雨水。
相关例句：
A survivor was knocked unconscious when the helicopter ditched.
在直升机紧急迫降时，一名幸存者被撞昏过去。
Below the bridge we could just discern a narrow, weedy ditch.
我们仅能依稀辨出桥下一条杂草丛生的窄沟。
He said the President was making a last ditch attempt to save his own neck.
他说总统正在作最后的努力，希望保住自己的声誉。
I jumped the ditch. that's how to WIN2000 pounds in england.
我跳过壕沟，我就这样在英国赢了2000镑。
There is a ditch parallel to or with the fence.
有一道沟和篱笆平行。
The water in the ditch is not very clean.
沟里的水不很清洁。