壕沟的英文：
entrenchment
intrenchment
moat

To hop a ditch .
跳过壕沟

They toiled all day digging the trench.
他们整天艰苦地挖壕沟。

A platform lining a trench or parapet wall on which soldiers may stand when firing
射击踏垛排有壕沟或胸墙的平台，士兵们站在其上射击

A ditch or moat.
壕沟，护城河

The castle is girded with a moat
城堡四周围以壕沟。

To dig or occupy a trench.
挖或占据壕沟

elephant dugout
【军】大壕沟,大防空洞

The inner wall of a ditch or trench dug around a fortification.
壕沟内壁在防御工事附近挖的战壕的内墙

revet a trench
(用砂包、鹿砦等)巩固壕沟

The enemy were strongly entrenched on the other side of the river.
敌军在河的对岸用坚固的壕沟防守。

They intrench themselves behind undeniable facts.
他们在无可否认的事实后面固守着自己。