Unas乌纳斯unaabbr.(英国)联合国协会(=United Nations Association)Una.n.尤娜(女子名)Unattended children留守儿童unamortized expense未摊销费用unauthorized agency[法] 无权代理unadulterated water无杂质的水unaccustomed luxury非凡的享受unattended junction无人管理的联轨点unascertained goods[法] 未经确定的货物unattached colleges独立学院unabsorbed expenses未吸收费用unassembled chassis未装合底盘