名词
中文翻译：第四纪冰河时代
同义词：
['Quaternary period', 'Pleistocene ice age例句：1. The Quaternary ice age was a time of extreme cold and glacier expansion.（第四纪冰河时代是一个极端寒冷和冰川扩张的时代。）']
例句：
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1. The Quaternary ice age was a time of extreme cold and glacier expansion.
第四纪冰河时代是一个极端寒冷和冰川扩张的时代。
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2.The Quaternary ice age is believed to have ended around 11,000 years ago.
第四纪冰河时代大约在11,000年前结束。
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3. The Quaternary ice age has left behind evidence of ancient life in the form of fossils.
第四纪冰河时代留下了古代生命的化石证据。