如果冰继续融化，有一天北极熊可能就不复存在了。
If the ice keeps becoming water, one day there might not be any polar bears.
凯西告诉救援人员，他已经和一只黑熊混在一起两天了，他称这只熊为他的“朋友”。
Casey told the rescuers he had hung out with a black bear for two days, a bear he called his "friend".
一天，小熊去树林里的小房子里看望熊爷爷和熊奶奶。
One day little bear came to visit grandmother bear and grandfather bear in their little house in the woods.
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