dull coal

英 [dull coal]
美 [dull coal]

中文释义

暗煤

单词分析

单词结构：

dull coal

字母数：9

记忆提示

🎯 重点记忆：

  • 单词拼写：dull coal
  • 核心含义：暗煤

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更新时间：2026-02-20 18:59:01