護城河的用法和樣例：
例句
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這座中世紀的城市周?chē)ㄓ谐菈妥o城河。
The medieval town was fortified with a high wall and a deep moat. -
暗墻；隱籬用來(lái)作柵欄，但又不阻礙視線(xiàn)或景觀(guān)的護城河，或由墻圍住的溝或陷入地中的籬笆
A moat, walled ditch, or hedge sunk in the ground to serve as a fence without impairing the view or scenic appeal. -
城堡外環(huán)繞著(zhù)一條護城河。
There is a moat round the castle.
