外星 wàixīng extraterrestrial Definitions Defs Origin Strokes Stroke Words Sentences Sents 外星人 wàixīngrén alien space alien; extraterrestrial河外星系 héwàixīngxì extragalactic galaxy a star system or galaxy located outside of our own Milky Way galaxy河外星云 héwàixīngyún extragalactic nebula
