translation.en: So when Nicolaus Copernicus said, actually the Earth is not the center of the universe, the sun is the center of the solar system, the Earth moves around the sun.
translation.zh: 所以当尼古拉斯哥白尼宣称 事实上地球不是宇宙的中心， 太阳是太阳系的中心， 地球围绕着太阳旋转，