随着路上汽车越来越多，它也变得更加困难和成本不菲。
It becomes more difficult and costly with the ever-increasing number of cars on the roads.
然而，随着汽车越来越多，废气排放、空气污染问题变得更加严重。
However, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious.
然而，随着越来越多的废气排放是汽车、空气污染问题变得更加严重。
However, with more and more waste gas being discharged by the cars, the problem of air pollution bees even more serious.
这些鸟巢现在变得有小汽车那么大，而且数量也越来越多。一位写有几本关于这些鸟的著作的鹦鹉行为顾问马荑·休·安珊说。
The nests can grow as big as a small car and include multiple compartments for large flocks, said Mattie Sue Athan, a parrot behavior consultant who has written several books on the birds.
然而，随着越来越多的废气排放是汽车、空气污染问题变得更加严重。
However, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious.
然而，随着越来越多的废气排放是汽车、空气污染问题变得更加严重。所以现在我们提倡过低碳的生活。
However, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious.
然而，随着越来越多的废气排放是汽车、空气污染问题变得更加严重。所以现在我们提倡过低碳的生活。
However, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious.
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