“南极洲创造了一个充满敌意的环境，”英国南极调查局运营总监说，“如果你不小心，它就会反咬你一口。”

"Antarctica creates a hostile environment," says the operations director for the British Antarctic Survey, "if you are not careful, it'll come around and bite you."

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一些科学家正在研究从南极洲收集冰山的可能性。据估计，南极洲拥有地球上最大的淡水储备。

Some scientists are examining the potential for harvesting icebergs from Antarctica, which is estimated to have the biggest reserves of fresh water on the planet.

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随着海洋变暖，一种被称为南极极锋的水体正被逐步推向南方；南极极锋是一种富含营养的海洋向上运动，它支持着大量海洋生物的生存。

As the ocean warms, a body of water called the Antarctic Polar Front—an upward movement of nutrient-rich sea that supports a huge abundance of marine life—is being pushed further south.

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You can take something that's magnetic with a north-south 1 magnetization and just say arbitrarily, this will represent one.

你只需要一个北南极的磁性物体,任意指定，比方说代表。

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