地球的力量 第3集 冰川(19)不可磨灭的伤疤

In just days, it smashed a path from source toocean,

在短短的日子里洪水冲刷出一条从源头到海洋的道路

for hundreds of miles,leaving behind a colossalcanyon.

长度有数百英里 留下了巨大的峡谷

And when the flood reached the sea,

当洪水到达海洋

it sent sediment shooting out vast distances across the ocean floor.

沉积物冲进海洋里在海底前行了广阔的距离

The ice age flood had left behind extraordinary scars on the landscape.

冰河时代的洪水在陆地上留下了不可磨灭的伤疤

This was once a waterfall several times the width of Niagara.

这就是曾经的瀑布相当于五倍的尼亚加拉河

These are giant ripples formed by the turbulent flood water.

这些是狂暴的洪水经过后形成的巨大波纹

And huge potholes were created by whirlpools that drilled straight down into the rock.

还有巨大的地面洞穴 涡流如同钻机般直穿岩石

The flood was so vast, it's difficult to imagine a catastrophe on this scale occurring today.

这次洪水是如此巨大 我们难以想象现在发生这种规模的灾难

But we now know that as the ice advanced and retreated during the ice age,

我们知道，随着冰河时代冰层的增加和减少

there were lots of floods on this scale in many parts of the world.

世界上许多地方都发生过这种规模的洪水