My headlights shone over a broad ditch of water.我的汽车前灯照亮了一道很宽的水沟。

ditch还可用作及物动词,意为“摆脱,抛弃”。例如:
She got bored with her boyfriend and ditched him.她对其男友感到厌烦,于是甩掉了他。

［同义词］   channel, furrow
［词源］＜中古英语dich(渠)