With the popularity of private cars, a new problem has arisen that the traffic is too heavy, especially during rush hours.

伴随着私家车的普及，一个新的问题出现了。交通太繁重了，特别是在交通高峰期。

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Especially during the rush hours, too many private vehicles move slowly on narrow roads, emitting a large amount of waste gas.

特别是在交通高峰期里，有太多的私家车在狭窄的道路上慢慢的移动，释放出大量污染气体。

youdao

Especially during the rush hours, too many private vehicles move slowly on narrow roads, emitting a large amount of waste gas.

特别是在交通高峰期里，有太多的私家车在狭窄的道路上慢慢的移动，释放出大量污染气体。

youdao