That's because they inevitably put the costs of cleaning the air on to individual drivers — who must pay fees or buy better vehicles — rather than on the car manufacturers whose cheating is the real cause of our toxic pollution.
这是因为它们不可避免地将清洁空气的成本归咎于个人驾驶者——他们必须支付费用或购买更好的车辆——而不是归咎于汽车制造商,因为汽车制造商的欺骗行为才是造成有毒污染的真正原因。