jumping jack
noun
1
- a jump done from a standing position with the arms and legs pointing outwards伸展跳跃（以站立姿势从原地跃起时双臂双腿向外展开的跳跃动作）。
2
- Brit. dated a small firework producing repeated explosions〈英, 旧〉跳爆竹（一种连续爆炸的小烟火）。
3
- a toy figure of a man, with movable limbs蹦蹦跳（一种四肢可以活动的人形玩偶）。