soleal line

例句：

1. 1.太阳系
   Solar System
2. 2. 恒星系统
   Stellar System
3. 3.行星系统
   Planetary System
4. 3. solar system, stellar system, planetary system例句：1. The solar system consists of the sun and all the planets in orbit around it.
   太阳系由太阳和绕其运行的所有行星组成。
5. 2.The study of stars is called astronomy.
   研究恒星的学科称为天文学。
6. 3. The planets are arranged in a regular pattern within their respective star systems.
   行星在各自的恒星系统中按照规律排列。