Ungun温贡
UNabbr.(=United Nations) 联合国pron.<口>人,事物,家伙,东西
unregulated reaches of river未整治河段
Und meinen Schmerz hinein.也放进我巨大的苦痛。
undisturbed response voltage无干扰响应电压
unprotected vertical opening不加保护的垂直开口
uncontaminated water/food未被污染的水/食物
Unbridled is more like it.更确切地说是毫无顾忌。
unmanned observation balloon无人观测气球
unfavorable explanation rule不利解释原则
uncoordinated motor activity不协调的肌肉运动