leapfrogs
名词 leapfrog:
advancing as if in the child's game, by leaping over obstacles or competitors
同义词:leapfrog
a game in which one child bends down and another leaps over
同义词:leapfrog
动词 leapfrog:
jump across
同义词:leapfrog
progress by large jumps instead of small increments
同义词:leapfrog