permo-carboniferous era

英 [permo-carboniferous era]
美 [permo-carboniferous era]

中文释义

石炭二叠纪

单词分析

单词结构：

permo-carboniferous era

字母数：23

记忆提示

🎯 重点记忆：

  • 单词拼写：permo-carboniferous era
  • 核心含义：石炭二叠纪

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更新时间：2026-03-18 05:09:24