名词
中文翻译：极光
同义词：
['north star', 'polar lights例句：1. The aurora borealis is visible from the Arctic region.（北极光可以从北极地区看到。）']
例句：
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1. The aurora borealis is visible from the Arctic region.
北极光可以从北极地区看到。
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2. Many people travel to Iceland just to see the aurora.
许多人去冰岛就是为了看极光。
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3.In the winter, the sky is often filled with beautiful auroras.
冬天，天空常常被美丽的极光所填满。