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The team of whales work round the clock for the boom is short-lived.
時光短暫，座頭鯨晝夜不停捕食。
Summer is already fading, and the whales will soon be forced north as winter returns.
短暫的夏天正逐漸消失，很快冬季又到了，這些鯨魚將不得不前往北方。
The sun's influence diminishes and the ocean starts to freeze.
太陽的威力逐漸減弱，海洋開始結(jié)冰。
The greatest seasonal change on our planet is underway.
我們這個行星上最顯著的季節(jié)變化正在發(fā)生
The ice grows at an extraordinary rate, advancing two and a half miles a day.
冰蓋的面積以非凡的速度擴大，一天擴大2.5英里。
In a matter of weeks, the continent effectively doubles in size.
幾個星期之內(nèi)，整個南極大陸的面積將擴大為原來的兩倍。
Life flees from Antarctica. But one creature is just arriving.
生物紛紛逃離南極洲，但偏有一種生物趕來。
Every winter, emperor penguins leave the comfort of their ocean home and begin a remarkable journey.
帝企鵝每年冬天便離開它們安逸的海洋家園，開始了非凡的征途。
They head towards their breeding grounds, almost 1 00 miles inland.
它們要前往繁殖地，幾乎在離海岸100英里的內(nèi)陸。
Eventually, the emperor penguins reach the place where they were hatched,
帝企鵝將最終到達它們出生的故鄉(xiāng)，
an area sheltered by icebergs, trapped in the frozen ocean.
一個位于冰封的洋面上、到處冰山林立的地方。
Here they will raise the next generation.
在這里，它們將繁衍下一代。
