I put more coal on the fire.

　　我往火里再加了些煤。

　　Demand for coal is down and so are prices

　　煤的需求下降了，煤價(jià)也相應(yīng)下跌。

　　A hot coal fell out of the fire and burnt the carpet.

　　一塊燃燒著的煤塊從火爐里掉出來把地毯燒了。

　　It is important to get the coals white-hot before you start cooking.

　　很重要的一點(diǎn)是要把煤塊燒到白熱狀再開始做飯。

　　Red-hot coals glowed in the fire.

　　熾熱的煤炭在爐子里發(fā)光。

　　Taking a gun to the United States would be like taking coals to Newcastle.

　　帶把槍去美國簡直是多此一舉。