问题
问答题
To it we owe the existence of the motor-car, which has replaced the private carriage drawn by the horse. To it we owe the possibility of flying. It has changed the methods of warfare on land and sea. This kind of oil comes out of the earth.
答案
参考答案：就是因为有了这种油，我们才能用上汽车，以代替马车。就是因为有了这种油，我们才有可能飞行。它还改变了陆战和海战的方法。这种油来源于地下。