名词中文翻译
中文翻译：地层
同义词：
['stratum', 'crust例句：1. The propine layer is where the fossils were found.（地层是化石被发现的地方。）']
例句：
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1. The propine layer is where the fossils were found.
地层是化石被发现的地方。
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2. The geologist used a drill to sample the propine layer.
地质学家使用钻探机取样地壳。
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3.The propine layer is important for understanding the Earth's history.
地壳对于理解地球历史至关重要。