Read Edit View history 河外星系 héwàixīngxì extragalactic galaxy Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 河外星系 héwàixīngxì extragalactic galaxy a star system or galaxy located outside of our own Milky Way galaxy 仙女座大星云是一个著名的河外星系。 Edit Delete References Add reference No references for this word.
河外星系 héwàixīngxì extragalactic galaxy a star system or galaxy located outside of our own Milky Way galaxy 仙女座大星云是一个著名的河外星系。 Edit Delete