| 单词 | 木卫二 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔Europa〕One of the four brightest satellites of Jupiter and the seventh in distance from the planet. It was originally sighted by Galileo.木卫二：木星最亮的四颗行星之一，与木星的距离排在其卫星的第七位，最早为伽俐略观测到美国传统〔moon〕Europa and Io are both moons of Jupiter.木卫二和木卫一都是木星的卫星。韦氏高阶 |
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