Uponen乌波宁
uponprep.在 ... 上;紧接着;逼近
Upon what terms of payment以何种交付方式
Upon myself I must depend.我必须依靠我自己.
upon Lenin' s passing-away
Upon the Course of Education对教育过程的探询
upon the assumption of office就职时
Upon their clamorous wings.盘旋成一个不完整的大圆环。
Upon Completion of Temporary Duty完成临时任务后
Upon Being Discharged from Treatment在治疗出院后