underarmadj.腋下的；低手式的adv.(板球）低手式地underprep.低于；在 ... 下；在 ... 内；在 ... 控制下adv.在昏迷中；在 ... 下adj.下面的；从属的；少于的under - sampling欠采样underdrain failure底配水系统损坏undercolor removal混色去除undermodified malt溶解不良麦芽under an agreement根据协议underlying surface下伏面,伏面under difficulties在困难的条件下,在不利的情况下under-assessment低估underbead covering内部裂纹under-draft flue下抽油烟