ET是英文Extraterrestrial的缩写,ET的中文意思是外星人。 extraterrestrial noun. (故事中的)天外来客,外星人,外星生物(in stories) a creature that comes from another planet; a creature that may exist on another planet. adj. 地球外的;外星球的;宇宙的 connected with life existing outside the planet Earth.