Uponen乌波宁
uponprep.在 ... 上;紧接着;逼近
upon someone's books
upon someone's heels
upon their last legsadj.濒于绝境(快要完结)
upon assuming office就职伊始
upon one's last legs
upon second thoughts经重新考虑后
upon the strength ofadj.靠 ... 的力量(凭; 依赖; 由于)
upon sb.'s proposal
upon my word of honoradj.以名誉担保
upon under compulsionadj.被迫(不得不)