jumping jacks

英 美
  • 跳起展体联系,杰克跳
  • jacks n.抓子游戏名词jack的复数形式.
  • jumping n.跳跃;突变现象adj.跳跃的;用于跳跃的动词jump的现在分词.
名词 jumping jack:
  1. plaything consisting of a toy figure with movable joints that can be made to dance by pulling strings