A student of modern languages who has a knowledge of Latin is one-up on a student who has not.学习现代语言的学生，如懂得拉丁语，要比不懂拉丁语的学生占优势。They're always trying to one-up each other by buying the latest gadgets.他们争相购买最时髦的电子产品，总是力争超过对方。The home team was one-up on the visitors.主队胜客队一筹。