[countable] a sudden increase in a price, cost, level, etc.（价格、成本、水准等的）突升，猛涨，激增◆We've seen a 17% jump in insurance costs.我们看到保险费用大幅增长 17%。◆unusually large price jumps非比寻常的大幅度涨价⨁a big / huge / large / sharp jump大的／庞大的／巨大的／急剧的增长 ⨁ a surprise / an unexpected jump意外的／意想不到的增长 ●get/have a ˈjump on sb (NAmE) (informal) to get or have an advantage over sb, because you have acted quickly（由于行动迅速）超越某人；（比某人）优先一步