coal seam

英 [coal seam]
美 [coal seam]

中文释义

煤层 [建] 煤层

单词分析

单词结构：

coal seam

字母数：9

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🎯 重点记忆：

  • 单词拼写：coal seam
  • 核心含义：煤层 [建] 煤层

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更新时间：2026-01-09 00:59:47