They could do away with having to deal with airports, traffic jams and the cost of paying for pilots.

他们可以不用应付机场、交通堵塞和飞行员的费用。

They could do away with having to deal with airports, traffic jams and the cost of paying for pilots. Such vehicles could even fly without a pilot.

无需机场等设施即可起飞，可避免交通堵塞，也无需重金雇佣飞行员。这种车辆甚至无需飞行员驾驶。