名词
中文翻译：Unknown
同义词：
['primitive', 'primordial', 'archaic']
例句：
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1.The study of primitive man has shed light on the evolution of humankind.
对原始人的研究表明了人类进化的过程。
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2.Primitive man lived in small communities and relied on hunting and gathering for survival.
原始人生活在小社区中，依靠狩猎和采集为生存。
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3. The discovery of primitive tools suggests that humans have been working with nature since the beginning of time.
发现原始工具表明人类自古以来就与自然合作。