名词
中文翻译：前寒武纪
同义词：
['Proterozoic', 'Paleozoic', 'Precambrian例句：1. The Palaeoproterozoic era is characterized by the emergence of multicellular organisms.（前寒武纪时代以多细胞生物的出现为特征。）2. The discovery of fossils from the Palaeoproterozoic period has shed light on the early history of life.（在古生代的化石发现揭示了生命早期的历史。）']
例句：
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1. The Palaeoproterozoic era is characterized by the emergence of multicellular organisms.
前寒武纪时代以多细胞生物的出现为特征。
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2. The discovery of fossils from the Palaeoproterozoic period has shed light on the early history of life.
在古生代的化石发现揭示了生命早期的历史。
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3. Palaeoproterozoic rocks are often rich in minerals and have been used for various purposes.
前寒武纪岩石富含矿物，被用于各种用途。