proterozoic (era)

英 [proterozoic (era)]
美 [proterozoic (era)]

中文释义

原生代

单词分析

单词结构：

proterozoic (era)

字母数：17

记忆提示

🎯 重点记忆：

  • 单词拼写：proterozoic (era)
  • 核心含义：原生代

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更新时间：2026-03-17 02:43:14