单词：leapfrog
vi. 跳背, 交替前进
vt. 跃过
n. a game in which one child bends down and another leaps over
v. jump across
leapfrog的用法和样例：
例句
- Folks playing leapfrog must complete all jumps.人们完成跳背游戏的时候必须完成所有的跳跃。
- Leapfrog development strategy is a popular practice for cities.城市实施跨越式发展带有普遍性。
- The win allowed Newcastle to leapfrog three teams to gain second place.这场胜利使纽卡斯尔队越过三支球队上升到第二的位置。
- This presented a chance to leapfrog the old technology and go straight to mobile phones.这提供了一个机会，让落后的技术直接跃至移动通信业务。
词汇搭配
- crippled leapfrog test踏步检验,记忆部件连...
- jump跳跃
- vault窖
- leap跳跃
- bound必定的
- spring春天
- advance前进
- shoot ahead飞速向前(迅速超过对手)...
- get ahead取得进步
- get on穿上，戴上
- pull ahead赶过
- overtake赶上
- pass通过
- leave behind留下
- outstrip超过
- step over横越
- circumvent绕行
- evade逃避
- avoid避免
- bypass绕开
- sidestep向旁侧避让
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