形容词
中文翻译：史前的
同义词：
['ancient', 'pre-historic']
例句：
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1. The discovery of the lostcity was made by a team of archaeologists who were studying prehistoricsites.
一支考古队发现了这座失落的城市，他们正在研究史前遗址。
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2. Prehistoric humans lived in caves andleft behind evidence of their existence.
史前人类生活在洞穴中，留下了他们存在的证据。
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3. The prehistoric era is oftenreferred to as the Stone Age.
史前时代通常被称为石器时代。