leap frog 英[li:p frɔɡ] 美[lip frɔɡ] [词典] 跳背戏; [例句]Games like running races," Leap Frog"," Tag"," Johnny on the Pony", and "King on the Hill" satisfy these needs.赛跑、“跳蛙”、“抓强盗”、“骑兵”和“山大王”等游戏满足了这种需要。