Darby was looking for a way to improve iron when he hit upon the idea of smelting it with coke instead of charcoal.达比一直在寻找改善铁质的方法，他猛然想到可以不用木炭熔炼，而改用焦炭。That morning we fired our first kiln of charcoal.那天上午，我们烧了我们的第一窑木炭。Chu...
在更多人质获得自由之前他们期望看到对方也有相应的表示。They expected a reciprocal gesture before more hostages could be freed.煤的需求下降了，煤价也相应下跌。Demand for coal is down and so are prices.掷一次骰子,玩家可相应向前移动.A throw of the dice allows a player to move hims...