rampart [ˈræmpɑ:t]

以下由轻松背单词网站提供

n.垒，壁垒，城墙；v.用壁垒围绕，防卫，守卫

a large wall built round a town , castle , etc . to protect it

A mole can undermine the strongest rampart.一只田鼠能毁坏最坚固的堡垒。
There is guard toing-and-froing along the rampart.有一个卫兵在沿着城堡来回走动。