We all know that clean air is important to good health. wherever you go and whatever you do, you are always surrounded by a sea of gases that we call air. If there are impurities in the air, they may be absorbed by our bodies and make us ill. We need clean air, but unfortunately , air pollution is globally present , especially in cities.

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Many large cities are anything but pollution-free. Our cities have many factories, which we need to make food, clothing and other things. Every year these factories pour millions upon millions of tons of smog into air. Power plants and houses that burn coal add greatly to air pollution. Besides , there are more cars in cities now. Once out on the streets, they will take in fresh air and replace it with poisonous gases.

Our country is trying hard to prevent and control air pollution. As long as every citizen also realizes its importance and makes join efforts, the day will come soon when people will take in only clean air. Then , the sunlight will no longer be blackened out by smoke and soot.

我们都知道清洁空气对于健康是很重要的。无论你去哪里,无论你做什么,你总是被海洋包围的气体,我们称之为空气。如果空气中有杂质,它们可能会被我们的身体吸收,使人生病。我们需要清洁的空气,但不幸的是,空气污染是目前全球,尤其是在城市。

许多大城市都无污染。我们的城市有很多工厂,我们需要食物,衣服和其他东西。每年这些工厂倒成百上千万吨的烟雾进入空气。燃烧煤炭的发电厂和房屋也大大加重空气污染。除此之外,在城市有更多的汽车。一旦在街上,他们将在新鲜空气和有毒气体取代它。

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我们的国家正努力预防和控制空气污染。只要每个公民也意识到它的重要性,使加入的努力,这一天很快就会到来,当人们将只在清洁空气。然后,阳光将不再是黑烟,烟灰。