名词
中文翻译：原始的石板
同义词：
['primitive stone', 'primitive rock']
例句：
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1.The ancient ruins are made of primitive plates.
这些古代遗迹是由原始石板制成的。
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2.The primitive plates were used to make the tools.
原始石板被用来制作工具。
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3. The primitive plates have been discovered in many archaeological sites.
在许多考古遗址中发现了原始石板。