a person who spends their time travelling from place to place

Their uncle was a rover, never settling for long in any one place. 他们的叔叔四海为家，从不在任何一个地方停留太久。

a small vehicle that can move over rough ground, often used on the surface of other planets, sometimes controlled from the earth

the lunar rover that transported astronauts and their equipment 运送宇航员及其设备的月球车

See the latest amazing photos from NASA's Mars rover Curiosity currently exploring the Red Planet. 请看正在探索红色星球的美国宇航局"好奇号"火星探测器发回的最新照片，令人惊叹。