英语听力：自然百科 北极熊 冰上间谍 Spy_Bear—17
时间：2014-05-22 06:56:54
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（单词翻译）
At last, there is hope. They have finally reached the pack-ice that forms the polar icecap. It’s the ultimate hunting habitat for polar bears. The icecap stretches all the way to the North Pole. Seals are found wherever it meets the sea. It’s been a long journey. There are a hundred miles from Svalbard and 150 miles from the den-sites where they were born. For now, she can relax, having fulfilled her mission. It’s the perfect spot to spend the few months left of summer.
It is four months since Svalbard was surrounded by sea ice. It could be another two before it freezes again. Guided by her sense of smell, the mother discovers what's left of the
stranded1 whale, but it looks like the
remains2 have been stripped clean by bears. The massive
backbone3 says it all. There is not a
scrap4 to be found. This was their last hope. With the carcass gone, the bears search the shore for
scraps5. All the remains are sun-bleached bones. There is little nutrition here, but at least the
cub6 has found something to chew on.
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