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n.煤炭( coal的名词复数 )；煤块； 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 consisting of carbonized vegetable matter deposited in the Carboniferous
