UNCAC反腐败公约UNabbr.(=United Nations) 联合国pron.<口>人，事物，家伙，东西unformed visual hallucination不成形幻视Un dernier verre de sherry.最后一杯雪丽。unbonded prestressed concrete无粘结预应力混凝土ungraded papers piled high.堆积成山的没改的卷子。undeveloped state of industry不发达的工业国家Unconventional Warfare Forces非常规作战部队uncounterweighted breechblock无平衡重块曲轴unbalanced three-phase load三相负荷不平衡unmanned shipboard helicopter无人舰载直升机UN Board of External Auditors联合国外部审计委员会