科學(xué)揭秘:恐龍滅絕的真正原因

        The temperature drop during the Cretaceous period would almost certainly have wiped out an 'abundance' of the world's dinosaurs.

　　曾經(jīng)稱霸地球顯赫一時(shí)的恐龍，在白堊紀(jì)時(shí)代的這次溫度巨變中，似乎全都滅絕了。

　　The scientists behind the ground-breaking study claim this would have been the first major step dinosaurs took on their eventual road to extinction.

　　在這次前所未有的研究中，科學(xué)家們聲稱，溫度巨變只是恐龍們走上滅絕之路的第一步。