high-grade metamorphic bituminous

[high-grade metamorphic bituminous]
[high-grade metamorphic bituminous]

中文释义

高变质烟煤

单词分析

单词结构:

high-grade metamorphic bituminous

字母数:33

记忆提示

🎯 重点记忆:

  • 单词拼写:high-grade metamorphic bituminous
  • 核心含义:高变质烟煤