Unfer温费尔UNabbr.(=United Nations) 联合国pron.<口>人，事物，家伙，东西unconventional dispatching超常规运行UN headquarter in New York纽约联合国总部undecene dicarboxylic acid十一碳烯二羧酸undisturbed sample of soil未扰动土样unemployment insurance law失业保险法uncontrolled market forces失去控制的市场力量uncensored news reports.未受审查的新闻报道。unbalance system economics非平衡系统经济学uncultivated microorganism未获培养微生物unconscionable spending.过度花费