The downpours lasted more than a million years... 倾盆大雨持续了超过100万年
that even after 200 million years... 以至于即便经过了两亿年
In the four million years since the Permian extinction... 二叠纪灭绝之后的400万年中
Sixty million years after the evolution of the amniotic egg, 进化出蛋之后6000万年
amphibians have survived for over 350 million years. 但两栖动物已在地球上生存 超过3.5亿年
which they ruled undisturbed for the next 40 million years. 在之后的4000万年 不受滋扰地统治着陆地
and Dunkleosteus had reigned for 20 million years. 邓氏鱼已经统治了2000万年