Don't rely on an air conditioner, ventilation system or an open window to clear the air.

不要依赖空调，排气系统或打开窗户来清洁空气。

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Thee interconnected system of green spaces in the parks can conserve natural ecosystem values and functions, sustain clear air and water, and provide a wide array of benefits to people and wildlife.

公园里成片成片的绿化地区能保护自然生态，供给洁净的空气和水源，对人和动物都有利。 。

youdao

Thee interconnected system of green spaces in the parks can conserve natural ecosystem values and functions, sustain clear air and water, and provide a wide array of benefits to people and wildlife.

公园里成片成片的绿化地区能保护自然生态，供给洁净的空气和水源，对人和动物都有利。 。

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