a form of life assumed to exist outside the Earth or its atmosphere
同义词：extraterrestrial being, alien
形容词 extraterrestrial:
originating or located or occurring outside Earth or its atmosphere
extraterrestrial例句
Presented a careful argument for extraterrestrial life.
提出关于地球外生命的详细论证
extraterrestrial详细解释
ex.tra.ter.res.tri.al adj.（形容词）Originating, located, or occurring outside Earth or its atmosphere:地球外的：源于，存在或位于地球和大气层之外的：例句：intelligent extraterrestrial life.地球外的智慧生命 【引伸】 ex.traterres.trial n.（名词）
