coal
US /koʊl/
UK /koʊl/

名词
1.
煤
a combustible black or dark brown sedimentary rock consisting mainly of carbonized plant matter, found in underground deposits and widely used as fuel.
示例:
•
The train was powered by coal.
火车由煤提供动力。
•
Many power plants still burn coal to generate electricity.
许多发电厂仍然燃烧煤来发电。
在 Lingoland 学习这个单词