After sending investigators to the scene we can now confirm that it was the result of an accidental fire.
在派出调查人员到现场后,我们现在可以确定事故是由意外失火导致的。
It is thought that they arrived more than 30,000 years ago by crossing a land bridge from Asia to America.
他们被认为是在3万多年以前从亚洲跨越一座陆桥来到美洲的。