Ungap不隔UNabbr.(=United Nations) 联合国pron.<口>人，事物，家伙，东西unbalance of external economics外部经济失衡undirectional direction finding单值测向Uncomentional blood sugar level血糖异常Untangle and purge of tissue.把裤袜拉直，将卫生纸清干净。undifferentiated chondrosarcoma未分化软骨肉瘤unbreakable transportation line钢铁运输线unconsolidated glacial deposits松散冰碛物uncompetitive enzyme inhibition无竞争性酶抑制undirection flow of information单向信息流undeceive sb. of his mistakes使某人明白自己的错误