unbagvt.把 ... 从袋里倒(或取、放)出来UNabbr.(=United Nations) 联合国pron.<口>人，事物，家伙，东西unguicular tuberosity甲粗隆unhelpful hotel staff无助的旅社职员unmanned lunar impact无人驾驶月球硬着陆uncoupling metabolism解偶联代谢undulating mold joint[机] 突起分模面uncommitted resources未支配资源unguentum zinci oxidi[医] 氧化锌软膏unfavoured transition不利跃迁unbonded short tendon无粘结预应力束unbalance coefficient不平衡系数