they slow down, release their sediment and build deltas. 水流减缓 留下大量泥沙 堆成了三角洲
rivers slow down and lose their destructive power. 河水流速变慢 没有了原来的破坏力
Most of the creatures here move up or down the slopes with the seasons 这里的大部分动物 都随着季节变化上下迁移
flowing down the valley with unstoppable force. 一刻不停地刨蚀着深谷
grind their way down the mountains, 碾磨出一座座尖峭的山峰
All mountains everywhere are being worn down by frost, snow and ice. 世界各地的高山都在不断经受 森林、积雪和冰川的消蚀
This vast range stretches 5,000 miles from the Equator down to the Antarctic. 这座巨大的山脉 从赤道向南极绵亘5000英里
It's not so risky to put your head down 它们可以毫无顾虑地埋头吃草
The sun, beating down on tropical waters, 太阳烘晒着热带地区的海水
Slowing it down forty times reveals the technique and immense strength of this massive predator. 放慢40倍的画面为你呈现了 这个巨型掠食者的纯熟技巧与强悍力量