名词
中文翻译：骨化石
同义词：
['bone fossil', 'fossil bone例句：1. The archaeologists found a rare histosite in the cave.（考古学家在洞穴里发现了一种罕见的骨化石。）2. The histosite is believed to be millions of years old.（这种骨化石被认为是数百万年的历史。）']
例句：
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1. The archaeologists found a rare histosite in the cave.
考古学家在洞穴里发现了一种罕见的骨化石。
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2. The histosite is believed to be millions of years old.
这种骨化石被认为是数百万年的历史。
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3. Fossil bones are often used as evidence in archaeological studies.
古生物的骨骼经常被用作考古学研究的证据。