We haven't found extraterrestrial life, and apparently it hasn't found us.(我們沒有發(fā)現(xiàn)外星生命，很顯然他們也還沒發(fā)現(xiàn)我們。)

International curiosity and local ingenuity have transformed the city into a quirky extraterrestrial-wannabe zone.(國際的好奇心和當(dāng)?shù)厝说木稍O(shè)計把這個城市變成了古怪的外星人選擇的地區(qū)。)

On the question of 'external guidance', he does not rule out extraterrestrial help.(至于“遙控指導(dǎo)”的問題，他沒有排除外星人的幫助。)

The search for extraterrestrial life has gained momentum in recent months.(近幾個月來，搜尋外星生命的活動獲得了很大的進(jìn)展。)

The standard approach to answering that question focuses on the search for extraterrestrial intelligence.(回答這種問題的標(biāo)準(zhǔn)方法著重于尋找外星文明。)

The latest research will help astronomers distinguish between the two sources of methane in their search for extraterrestrial life.(這項最新發(fā)現(xiàn)將幫助天文學(xué)家在尋找外星生命過程中辨別兩種來源不同的甲烷。)

Of course, there is always the chance that extraterrestrial life will find us first.(當(dāng)然，很有可能外星生命先發(fā)現(xiàn)我們。)

An extraterrestrial impact is most closely linked to the Cretaceous extinction event.(天外來客對地球的撞擊與白堊紀(jì)的物種滅絕事件有著最為密切的聯(lián)系。)

The sense of an extraterrestrial experience is heightened by a line of yellow lights twinkling on the horizon, like a lone settlement on a hostile planet.(地平線上有黃色的光線在閃爍加深了在外星上的感覺，就像是一個充滿敵意的星球上的一個孤獨(dú)的定居點(diǎn)。)

Superchiral light could even aid the search for extraterrestrial life.(超手性光束還可能有助于尋找外星生命。)