translation.en: Particularly, there's a place called Europa, which is -- Europa is one of the moons of Jupiter, where we see a very level ice surface, which looks as if it's floating on top of an ocean.
translation.zh: 这个地方叫欧罗巴 它是木星的一个卫星 我们可以看到一层平坦的冰层 就像是漂浮在海洋上一样