extraterrestrial
US
UK extraterrestrial n: (alien)
SC 外星人 wài xīng rén
The newspaper reported that several people had seen extraterrestrials.
extraterrestrial adj: (alien, from outer space)
SC 外星的 wài xīng de
SC 外太空的 wài xīng de，wài tài kōng de
Scientists have not ruled out the possibility of extraterrestrial life.