问题描述：
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.】
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.】
问题解答：
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