lignocerane

例句：

1. 1.The charcoal was used to clean the windows.
   木炭被用来清洁窗户。
2. 2.The charcoal was used as a fuel for cooking.
   木炭被用作烹饪的燃料。
3. 3.The charcoal was used to make bricks.
   木炭被用来制作砖块。