In Mexico, researchers have drilled rock cores from the Chicxulub crater.

在墨西哥，研究人员从希克苏鲁伯陨石坑钻出了岩心。

It turns out in my lifetime people found this crater, off Chicxulub, Mexico.

在我有生之年，人们在墨西哥希克苏鲁伯附近发现了一个坑。

It's thought that global wildfires engulfed the planet for a year or more after the Chicxulub impact.

人们普遍认为，希克苏鲁伯陨石撞击地球后，地球上发生了长达一年或更长时间的全球性火灾。

The infamous Chicxulub asteroid hit earth 66 million years ago wiped out the dinosaurs.

臭名昭著的希克苏鲁伯小行星在 6600 万年前撞击地球，导致恐龙灭绝。

It seemed to be exactly the same age as Chicxulub.

它看起来的确与希克苏鲁伯处于同一年代。

At Chicxulub the crater was buried a kilometre underground.

希克苏鲁伯陨石坑被埋在地下1公里的深处。

He scoured the country for rock outcrops which were the same age as Chicxulub.

他在这个国家遍寻与希克苏鲁伯同年代的裸露岩石。

After the Chicxulub impact, the spherules settled on the sea floor within minutes.

希克苏鲁伯大碰撞后，小球体几分钟内便落到海底。

Chemical analysis suggested, these remains of tiny meteorites like the layer higher up could only have come from the Chicxulub crater.

化学分析显示，这些陨石残留体和上方的小球体层一样，只有可能来自希克苏鲁伯陨石坑。

Even now, there are those who think the formation of the Chicxulub crater was a coincidence, and that what did for the dinosaurs was actually the volcanoes, so Dr Tohver will have to work hard to convince the sceptics.

直到今天还有人认为希克苏鲁伯陨石坑的形成只不过是个巧合，真正让恐龙消亡的原因是火山爆发，所以托瓦尔博士还需要加把劲来证明他的假设。