moat

详细解释:n. 壕沟, 护城河
vt. 将...围以壕沟

词型变化：

动词过去式:moated过去分词:moated现在分词:moating第三人称单数:moats

英语解释：

名词 moat:

ditch dug as a fortification and usually filled with water同义词：fosse