development and driving of coal mines

英 [development and driving of coal mines]
美 [development and driving of coal mines]

中文释义

煤矿开拓掘进

单词分析

单词结构：

development and driving of coal mines

字母数：37

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🎯 重点记忆：

  • 单词拼写：development and driving of coal mines
  • 核心含义：煤矿开拓掘进

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更新时间：2025-04-06 12:15:41