大量的绿色植物既净化了空气又有效地减小了噪音的传播的翻译：A large number of green plants clean the air but also effectively reduces noise transmission 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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A large number of green plants clean the air but also effectively reduces noise transmission

The massive green plants both purified the air and to reduce the noise dissemination effectively

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A large number of green plants clean the air but also effectively reduces noise transmission