Mammoths, cave lions, and hundreds of other species vanished. 猛犸象、穴狮 以及数以百计其他物种消失了
there had been hundreds of ancient species living in the trees, 树上居住着数百种古老的物种
Hundreds of millions of years of evolution, 数亿年的进化
has been a feature of life on Earth for hundreds of millions of years. 数亿年来 一直是地球生命的特点
Hundreds of millions of years after Anthracosaurus, 石炭鲵出现之后几亿年
that has remained almost the same for hundreds of millions of years. 已经保持了数亿年 几乎不变
they can detect prey from hundreds of meters away. 能够在数百米外侦测猎物
glaciers hundreds of meters tall cascaded into the warming seas. 高达数百米的冰川 倾泻进入正在变暖的海洋
It first evolved hundreds of millions of years ago, 最早在数亿年前进化