coal mining underbuildings

[coal mining underbuildings]
[coal mining underbuildings]

中文释义

建筑物下采煤

单词分析

单词结构:

coal mining underbuildings

字母数:26

记忆提示

🎯 重点记忆:

  • 单词拼写:coal mining underbuildings
  • 核心含义:建筑物下采煤