大城市空气污染严重，不如乡下好的翻译：Serious air pollution in big cities than the countryside well 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

City air pollution, the countryside as well

Serious air pollution in big cities than the countryside well

The big city air pollution is serious, was inferior the countryside is good

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Serious air pollution in big cities than the countryside well