英语听力：探索发现 2014-07-04 BBC 地平线：陨石的真相-23

（单词翻译）

 As the divers¹ have explored further, they discovered the Siluteis are actually part of a huge complex of tounels and caves.In fact, when you look from above, you can see Senluties scattered² across hundreds of kilometers.And when they were mapped, it becomes clear they followed a distinctive³ circular course through the jungle.They mark the ring of giant crater⁴.Scientific instruments showing the structure of underlined rock has been deformed,revealing the bounderies of a clossil meteorite⁵ impact crater.Wa, it's amazing, cavern⁶ is a part of bigger story, a much bigger story.65million years ago, this was the site of one of catastrophic impact in Earth's history.It became known as the Chiks meteorite landed here, and that triggered the extinction⁷ of dinosaors.