名詞 wood coal:

1. intermediate between peat and bituminous coal
   同義詞：lignite, brown coal
2. a carbonaceous material obtained by heating wood or other organic matter in the absence of air
   同義詞：charcoal

1. A material such as wood, coal, gas, or oil burned to produce heat or power.
   燃燒劑木頭、煤、天然氣、石油等燃燒生熱并且產生能量的物質