pebble coal

英 [pebble coal]
美 [pebble coal]

中文释义

砾煤,球状煤

单词分析

单词结构：

pebble coal

字母数：11

记忆提示

🎯 重点记忆：

  • 单词拼写：pebble coal
  • 核心含义：砾煤,球状煤

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更新时间：2026-01-31 00:47:20