coal supply

英 美
  • 给煤
  • coal n.煤;木炭vt.烧成炭;供应煤vi.加煤;装煤
  • supply n.供应;补给;贮备vt.供应;提供;补充
    1. The coal industry is running down as coal supplies are used up.
      由于煤炭的来源枯竭,煤炭工业正在衰退。