如何使用 "coal" 造句

1. But iron ore and coal prices remain firm .
但铁矿石和煤炭价格仍保持稳定。
2. What energy sources could be substitutes for coal ?
什么能源资源可作为煤的替代品?
3. Replace coal with gas and such cooling is lost .
燃气取代燃煤,这种冷却效力即告消失。
4. But prime minister kan may still get a lump of coal for the holidays .
菅直人可能还可以得到为假期销售送来的这块雪中之炭。
5. High coal prices are also causing problems .
煤炭价格的高企也在带来麻烦。