常见例句用作名词 (n.)DOD of America is a pentagonal building, which is called Pentagon.美国国防部的办公大楼是一座五边形建筑物，叫做五角大楼。The office block of U.S.A defense is a pentagonal buliding,ia named pentagon.美国国防部的办公大楼是一座五边形建筑物，叫做五角大楼。 返回 pentagonally