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Precambrian

/pri:'kæmbriәn/

📖 中文释义

  1. n. 前寒武纪, 前寒武纪岩
📘 English Definition（英文释义）
  1. n. the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago
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