leapfrog
noun [ U ] uk/ˈliːp.frɒɡ/ us/ˈliːp.frɑːɡ/
（儿童玩的）跳背游戏
a children's game in which a number of children bend down and another child jumps over them one at a time
leapfrog
verb [ I or T, usually + adv/prep ] uk/ˈliːp.frɒɡ/ us/ˈliːp.frɑːɡ/ -gg-
越级提升
to improve your position by going past other people quickly or by missing out some stages
They've leapfrogged from third to first place. 他们已经从第三位上升到了第一位。
She leapfrogged several older colleagues to get the manager's job. 她越过几位年长的同事升到了经理的职位。