adj.地球(或其大氣圈)外的；行星際的
n.外星人
Extraterrestrial life has often become the subject of science fiction films. 科幻片經(jīng)常以外星生命為主題。
The extraterrestrial would say we all speak dialects of one common language. 這位外星人會覺得，我們都在講一種語言中的不同方言。
