名词
中文翻译：古生代石灰石
同义词：
['gastropod', 'igneous rock']
例句：
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1.The ancient glyptoliths are a fascinating study of the early Earth's history.
古代的石灰石是研究早期地球历史的迷人研究。
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2. The discovery of these glyptoliths has sparked new theories about the origins of life on Earth.
这些古生代石灰石的发现激发了关于地球上生命起源的新理论。
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3. These glyptoliths were formed millions of years ago and provide valuable insights into the geological processesthat shaped our planet.
这些古生代石灰石数百万年前形成，为了解塑造我们星球的地质过程提供了宝贵的见解。