(in science fiction stories )科幻故事 a device that somebody wears on their shoulders like a backpack that enables them to fly 喷气背包:有人可以像背包那样戴在肩膀上的装置 All game players have a spacesuit, a jetpack and a ray gun. 所有游戏玩家都有一套宇航服,一个喷气背包和一把雷枪。 The movie features a great jetpack chase. 这部电影的特点是一个伟大的喷气背包追逐。
Word Origin1950s: from jet and pack.