Sirian

例句：

1. 1. The planet Sirius is the brightest star in the night sky.
   土星是夜空中最亮的星星。
2. 2.The discovery of Sirius was a major breakthrough in astronomy.
   发现土星是天文学的重大突破。
3. 3.The planet Sirius has been studied for centuries due to its proximity to Earth.
   由于与地球的接近，土星已经研究了几个世纪。