煤;煤块;煤堆;木炭vi.上煤;加煤vt.给…加煤;把…烧成炭[例句]This is where the increasing importance of another commodity – coal – becomes apparent.这显然使另一种大宗商品——煤炭——愈发重要。
煤，煤块，木炭
煤炭
