城市交通非常拥挤，经常出现堵车的翻译：Urban traffic is very heavy, often traffic jams 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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Urban traffic is very heavy, often traffic jams

The municipal transportation is extremely crowded, appears frequently traffics jams

There are often very crowded, urban traffic congestion

Urban traffic is very heavy, often traffic jams