名词
中文翻译：极地年
同义词：
['Arctic year', 'Polar year']
例句：
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1.This year is a polar year, so the sun doesn't set until late October.
今年是极地年，所以太阳直到十月底才落下。
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2.The polar year is when the Earth's axis tilts towards the sun, causing long periods of daylight.
极地年是指地球轴向太阳倾斜，导致长时间阳光照射的时期。
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3. During the polar year, many animals have to adapt to spending more time in the dark.
在极地年期间，许多动物需要适应在黑暗中度过更多时间。