名词
中文翻译：极地日
同义词：
['polar day', 'polar night例句：1. During the polar day', 'the sun never sets in the Arctic.（在极地日期间，北极的太阳永远不会落下。）']
例句：
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1. During the polar day, the sun never sets in the Arctic.
在极地日期间，北极的太阳永远不会落下。
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2.The polar day is a time when the Earth's axis tilts towards the sun, causing extreme weather conditions.
极地日是地球轴倾斜朝向太阳，导致极端天气条件的时候。
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3. Polar day and night are marked by the same amount of sunlight, making it challenging for animals to find food.
极地白天和黑夜的阳光量相同，这使得动物很难找到食物。