sputnik
/ˈspʊtnɪk/noun
- each of a series of Soviet artificial satellites, the first of which (launched on 4 October 1957) was the first satellite to be placed in orbit苏联人造地球卫星(其中的第一颗卫星于1957年10月4日发射, 是首颗轨道卫星)。
词源
Russian, literally 'fellow-traveller'.