内容简介：
We're making time now, Tom. "Making time?" repeated Tom Rover as he gazed out of the car window at the telegraph poles flashing past. "I should say we were, Sam Why, we must be running sixty miles an hour " "If we are not we are making pretty close to it," came from a third boy of the party in the parlor car. "I think the engineer is trying to make up some of the time we lost at the last stop."