leapfrog的一般过去时为：leapfrogged...

leapfrog的音标：leapfrog的英式发音音标为：['li:pfrɒg]leapfrog的美式发音音标为：['lipfrɔg]...

leapfrog的第三人称单数（三单）为：leapfrogs...

leapfrog的现在进行时为：leapfrogging...

n.跳背游戏（分开两腿从背弯站立者身上跳过），（两支部队）交互跃进，竞相提高v.跳背，交替前进，跃过...

China railway leapfrog development strategy focused on large - scale railway network construction.中国铁路跨越式发展战略的核心是实施大规模铁路网建设.Do your intelligence officers know where the bad guys are planning to use this leapfrog tactic?你...

leapfrog的现在完成时为：leapfrogged...

Do your intelligence officers know where the bad guys are planning to use this leapfrog tactic?你们情报官员知道那帮坏蛋打算在哪里实施这些跳蛙策略?China railway leapfrog development strategy focused on large - scale railway network construction.中...