他的轿车被交通警察用轮夹给锁住了。
想象一下,当您在2020年购入一台装有obu轿车,它根据您的行驶距离、行驶时间以及当时的交通状况向您收费。
So expect the car you buy in, say, 2020 to come with a built-in OBU, capable of charging you depending on where and when you drive and how much traffic there is.
但这一进步又带来了新问题:这么多的小轿车使交通变得越来越糟,空气污染也很严重。
But this progress brought new problems: With all the cars, traffic was getting worse and worse, and pollution was ter-rible.
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