Unfer温费尔UNabbr.(=United Nations) 联合国pron.<口>人，事物，家伙，东西uncontrollable catastrophe无法控制的灾难unlooked - for riches.不期而至的财富un- authorized personnel非编人员uncatalyzed polymerization无催化聚合UN peacekeeping operations联合国维和行动Undelivered Order Schedule尚未发出的订货计划un-sportsmanlike conduct违反体育道德的行为undenvater laser detection水下激光探测uncorrelated and dependent不相关且不独立unconscionable behavior.肆无忌惮的行为