leap·frog /ˈlipˌfrɔg, ˌfrɑg/
跳蛙遊戲,跳背遊戲(vi.)蛙跳,跳背(vt.)躍過
leapfrog
原位測試
leapfrog
跳位測試
leapfrog
跳位
Leap·frog n. A play among boys, in which one stoops down and another leaps over him by placing his hands on the shoulders of the former.
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leapfrog
n 1: advancing as if in the game of leapfrog
2: a game in which one child bends down and another leaps over
v 1: jump across; "He leapfrogged his classmates"
2: progress by large jumps instead of small increments
[also: leapfrogging, leapfrogged]