undertaxv.课税太低
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
underglazed red釉里红
underdeck cargo舱货
underhead crack焊面下裂缝
under full sail满帆地
under-reaming扩孔
underpopulationn.人口稀少
underhand throw下投,肩下投掷
undersea mining海底采矿
under-gouging欠切
under-pricing[经] 定价偏低