coalfields什么意思

n.
煤田( coalfield的名词复数 )

相关问题

coalfields造句

On a global scale, there are many coalfields suffered from spontaneous combustion of coal seam problems.在全球范围内, 许多煤田都存在煤层自燃问题....
- #coalfields
- #造句
coalfields怎么读？

coalfields的音标：...
- #coalfields
- #发音