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由此你可以算出銀河系的總質(zhì)量。From this you can calculate the total mass in the Galaxy.銀河系由1,000億顆恒星組成。The Galaxy consists of 100 billion stars.地球是銀河系中的星球之一.The earth is one of the planets in the Galaxy....

“銀河系”的拼音為：yín hé xì...

“銀河系”的英語可以翻譯為：Galactic System，galaxy，Milky Way system，Milky Way galaxy ...