moats
n. (古时城堡为了防御而在四周挖的)壕沟,护城河( moat的名词复数 ); (现代动物园为防止动物逃跑而在场地四周挖的)深沟
A moat is a deep, wide channel dug round a place such as a castle and filled with water, in order to protect the place from attack.
Nowadays , the watery moats which were Venice's protection have become its enemy.
曾经保护威尼斯的护城河现今却成了它的大敌.
What did you expect, coffins and dungeons and moats?
你以为呢棺材地牢还有壕沟?
In ancient times all cities had city moats.
在中国古代啊城墙是有护城河的.