A: Hey, What are you watching?
B: This is a cartoon about the galaxy. It is based on a real story.
A: Wow, so what do you know about the galaxy through this cartoon?
B: A lot. The most simple thing is a galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.
A: Yeah! And I know that The word galaxy is derived from the Greek galaxias.
B: Right! As I search, I also realize that Galaxies are categorized according to their visual morphology.
A: What an helpful cartoon! Can I join in watching it with you?
B: Of course.
Bài viết có thể còn nhiều chỗ sai sót, bạn thông cảm, một phần thông tin được trích từ Galaxy- wikipedia (link:https://en.wikipedia.org/wiki/Galaxy)
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