名词
中文翻译：低温带
同义词：
['cold zone', 'polar region']
例句：
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1.The lower frigid zone is wherethe temperature drops below freezing point.
低寒带是温度低于冰点的地方。
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2. Thepolar regions are home to many unique speciesof plants and animals.
极地区域是许多独特植物和动物的家园。
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3. Thelower frigid zone is a crucialhabitat for migratory birds during thewinter months.
低寒带是冬季迁徙鸟类的重要栖息地。