1. 释义：to suddenly become better, more advanced etc than people or organization that were previously better than you
2. 理解："leapfrog"既可以作名词，又可作动词，作名词它的本意是“跳马游戏、跳山羊游戏”，动词本意就是跳山羊这个动作，也常常引申为“突然超越、蹿至、一跃超过”。这种引申的用法在外刊很常见，恰当使用leapfrog可以让我们的表达更形象、生动、准确。
句式：Thanks to a happy combination of A and B, C may be able to leapfrog ahead not only once but twice, skipping both D, often, E.
3. 应用：
1）翻译：David超越了同班同学，只用两年半就拿到了本科学位。
David leapfrogged his classmates and obtained his bachelor's degree within just two and a half year.
2) 造句：
He leapfrogged his competitors and get the job.(求职成功）
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