VOA慢速英语2013.01.01 believes, important, different, 生产, 的

Rebecca949

JBI produces several thousand liters of fuel a day. It creates different grades of fuel for different industries. It sells the fuel for up to one hundred dollars a barrel. Each barrel costs about ten dollars to produce.JBI每天生产数千公升燃油,能为各个行业生产不同级别的燃油,一桶油的卖价高达100美元,每桶油的生产成本大约是10美元.

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