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It may have been the closest that humankind has ever come to encountering extraterrestrials.這可能是人類最近地遇到外星球生物.I figured why search for extraterrestrials when you can help with research?當(dāng)你可以幫助科學(xué)研究時(shí),為什么要尋找外星生物 呢 ?The existe...

extraterrestrials的音標(biāo)：...

n.外星人( extraterrestrial的名詞復(fù)數(shù) )...