head start
比其他人更早开始或获得优势
口语·形容先发优势
英文释义
an advantage or lead in a competition or situation; a head start allows one to begin before others and therefore have a better chance of success
例句
Studying early gave her a head start on the final exam preparation.
典故来源
源自赛跑中提前起跑的优势，后泛指在竞争或任务中先发制人获得的领先。