Unen乌嫩UNabbr.(=United Nations) 联合国pron.<口>人，事物，家伙，东西Ununited/TH不愈合／治疗unlisted words未登录词undecylic acid十一酸unquestionedlyadv.不成问题地unblocked file非封锁文件uncountability不可数性unbalanced set无界集合Uncaria gambir黑儿茶unpowered mode无动力undrained lake不流通湖