we can heat houses and run trains and machines with coal and oil

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• 英语翻译Oil (油)is very useful to us .We need oil in many ways.Without oil the world will stop.Now oilmen look for oil in many places of the world.They look for it in deserts,in moutains and under the sea.Quite often they can find nothing,but their work goes on for many years.Why is oil so important?Because our machines need it to run .People usually use big ships to carry oil.The ships carry it to everywhere.Maybe the oil in your car or motorbike comes fr
• we can heat houses and run trains and machines with coal and oil
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