形容词
中文翻译：原始的
同义词：
['primordial', 'primitive例句：1. The primitive tools used by our ancestors were very crude.（我们祖先使用的原始工具非常粗糙。）']
例句：
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1. The primitive tools used by our ancestors were very crude.
我们祖先使用的原始工具非常粗糙。
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2.Primitive societies often lacked modern infrastructure.
原始社会往往缺乏现代基础设施。
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3.The discovery of primitive DNA sequences has revolutionized genetic research.
发现原始DNA序列的革命性研究改变了遗传学。