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.
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，