an orderly assigned to serve a British military officer
batman详细解释
bat.man n.(名词)A British military officer`s orderly.(英国军队中的)勤务兵、传令兵 来源:Obsolete bat from French bat from Old French bast from Late Latin bastum 废语 bat 源自 法语 bat 源自 古法语 bast 源自 后期拉丁语 bastummanman