rover/ˈroʊvər/1游牧民, 流浪者someone who leads a wandering unsettled lifeCopy同义词： bird of passagewandererroamer2罗浮, 成年童子军an adult member of the Boy Scouts movementCopy同义词： scouter3漫游车, 探测车a robotic vehicle designed to move across the surface of a celestial body to conduct scientific experiments and gather dataCopy