primary brown earth

英 [primary brown earth]
美 [primary brown earth]

中文释义

原生棕壤

单词分析

单词结构：

primary brown earth

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：primary brown earth
  • 核心含义：原生棕壤

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更新时间：2026-01-15 09:50:00