奇兵: an army suddenly appearing from nowhere; an ingenious military move
伍: Ⅰ数词(五的大写) five (used for the numeral 五 on cheques, banknotes, etc. to avoid mistakes or alterations)Ⅱ名词1.(古代军队的最小单位) the basic five-man unit of the army in ancient china2.(泛指军队) army 短语和例子
