uponprep.在 ... 上；紧接着；逼近upon ones heelsadj.接踵(紧接着；尾随)upon his honouradj.以名誉担保upon her honouradj.以名誉担保upon one's life主题蜘蛛upon the square成直角upon her mettleadj.奋发起来(鼓起勇气)upon on occasionadj.遇必要时(有机会时；得便时)upon your honouradj.以名誉担保upon one's honor主观对象upon set purpose故意