UNSCOMn.联合国特委会unsadj.不对称的unsymmetrical equilibrium不对称平衡unstimulating environment缺乏刺激环境unsaturated cohesive soil非饱和粘性土unsignalized intersection无信号交叉口Unscrew the door-handle松开门拉手上的螺丝.unsatisfied external name未满足的外部名unscheduled DNA synthesis非常规DNA合成, 期外DNA合成Unstimulated whole saliva刺激性唾液unsuppressible replicator不可删重复符unsymmetrical deformation不对称变形