Unden残杀威UNabbr.(=United Nations) 联合国pron.<口>人，事物，家伙，东西uncinate process of unciform bone钩骨钩突unemployment compensation payable[经] 应付失业补助金unguentum resorcinolis compositum复方间苯二酚软膏, 复方雷琐辛软膏UN Secretary-General Kofi Annan-联合国秘书长科菲·安南undepreciated balance of the cost未折旧原价余额Unbearably haggard from suffering痿损不堪undifferentiated diffuse lymphoma弥散性未分化淋巴瘤unbalance of economic development经济发展不平衡uncancelled potential differences未对消的电位差Untimeous spur spill the steed.多用踢马剌，骏马也变痴。