n.拱顶( vault的名词复数 )；地下室；撑物跳高；墓穴 双语释义：n.(名词)[C] 拱顶 a roof or ceiling made out of a number of arches[C] 地下室;银行的金库 an underground room;a room for storing valuables at a bank[C] 墓穴 a burial chamber英英释义： vaultn.a burial chamber (usually underground)同义词：burial v