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The annual melt has begun.
每年一次的解凍期來了。
This is a challenging time for the bear family.
對于北極熊一家來說，這是一個極富挑戰(zhàn)性的時刻。
One out of every two cubs do not survive their first year out on the ice.
兩只幼熊中往往會有一只無法在第一年存活下來。
As the sun's influence increases, the sea ice seems to take on a life of its own.
隨著太陽的威力逐漸增強，海冰仿佛有了自己的生命。
Glacial melt waters pour from the land, mingling with the sea and speeding up the thaw.
融化了的冰川水從陸地上噴瀉而出，與海水交匯，加速了解凍。
The seascape is in constant flux as broken ice is moved on by winds and currents.
海洋在不斷地變遷，破裂的冰塊在風(fēng)和洋流的作用下不停地移動著。
The ice is becoming too weak to support a male polar bear.
冰面開始變薄，已經(jīng)很難承受一只雄性北極熊的重量。
He attempts to spread his weight,
這只北極熊試圖分散身體的重量，
but the ice that has supported him all winter is rapidly disintegrating.
但是在冬天能夠支撐它的冰面現(xiàn)在正迅速地解體。
Each year, as the climate warms, the Arctic holds less ice.
每年的天氣變暖時，北冰洋的冰就會減少。
This is a disaster for polar bears.
對于北極熊而言，這是一場災(zāi)難。
Without its solid platform, they can't hunt the seals they need in order to survive.
沒有堅實的冰作為平臺，北極熊就不能獵捕它們賴以生存的海豹。
This may be a glimpse of the unstable future faced by this magnificent creature.
這種巨大生物的前途很不樂觀。
