Read Edit View history 河外星系 héwàixīngxì extragalactic galaxy Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 河外星系 · héwàixīngxì · extragalactic galaxy 2026/03/04 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。 created sense Mar 4, 2026, 02:25 AM