Warmth melted some of the polar ice.
温暖的天气融化了一些极地的冰雪。
The northern and southern polar regions are different in many ways.
南北极极地在许多方面均有所不同.
The photography in the film about arctic wildlife was superb.
那部影片中拍摄的极地野生动物好看极了.
Stratification in polar waters normally is weak and transient.
极地水域的成层性是微弱而暂时的.
Over the polar regions we should see aurora.
在极地高空,我们会看到极光.
In fact, over 85 % of the earth's entire fresh water is found in the polar ice.
实际上, 地球上总淡水量的85%以上见之于极地冰川.
Except for the polar regions and a few islands, they have spread throughout the world.
除了极地和少数岛屿, 它们分布于世界各地.
But global warming is melting the polar ice caps and disrupting this flow.
但是全球变暖正在融化极地的冰川而这干扰了这个洋流.
Two years later, Polar Lander was lost during landing.
两年之后, 极地登陆者号却在着陆时迷失了.
Wally Herbert is the greatest pioneering polar explorer alive today.
威利·赫伯特是当今仍健在的最伟大的,最早探险极地的人.
I learned quite a lot about those animals and polar areas.
我学到了不少有关这些动物和极地的知识.
You see icecaps melting almost everywhere at the polar areas.
在极地,你可以看到到处都有冰盖在融化.
In northern Siberia, bone - chilling winds sweep down from the Pole.
在西伯利亚之北, 来自极地的刺骨寒风扑面而吹.
Liquid water could be thawed to form a polar ocean.
液化的水可以融化成极地海洋.
Wilderness forests give way to arctic tundra in the Far North.
原生森林一直延伸到极远的北方始由极地草原取代.