n.煤；煤块；煤堆；木炭vi.上煤；加煤；vt.给…加煤；把…烧成炭； 变形： 复数：coals过去式：coaled过去分词：coaled现在分词：coaling第三人称单数：coals 双语释义：n.(名词)[U]煤炭 black mineral found below the ground, used for burning to supply heat and to make coal gas[C]煤块 a piece of coal英英释义： coal[ kəul ]n.fossil fuel c