英语翻译Remember that our solar system is a single star,the Sun,

英语翻译
Remember that our solar system is a single star,the Sun,with various bodies orbiting around it—nine planets and their moons,and asteroids,comets,meteors.But the galaxy has a lot of star systems—probably 100 billion of them.
【 Okay?This is important because you can be off by almost 100 billion if you get confused by these terms.Not a good idea.】