1·Most people don't realize that they are breathing polluted air.
大多数人没有意识到自己正呼吸着污染了的空气。
—— 《牛津词典》
2·Even if polluted air does not kill us, it can make us very sick.
即使污染的空气不会杀死我们，它也会使我们生重病。
3·He and his team found that breathing polluted air can reduce a person's education level by about one year.
他和他的团队发现，呼吸被污染的空气会使一个人的教育水平降低一年左右。
4·The heaviest, which shocked the world, was in 19 because of cold weather and windless conditions, polluted air covered the city.
最严重的是在19年，因为寒冷的天气和无风的条件，污染的空气覆盖了城市，这震惊了整个世界。
5·Polluted air and water can kill plants, animals, and even people.
被污染的空气和水可以杀死植物、动物，甚至是人。
6·Polluted air endangered our health.
废气危害我们的健康。
7·Half of US population breathe polluted air.
美国有一半以上的人口呼吸污染空气。
8·It is most harmful to breathe in such polluted air.
吸入这种污染的空气是十分有害的。
9·Badly polluted air can cause illness, and even death.
被严重污染的空气将引起各种疾病，甚至死亡。
10·We heard about polluted air, polluted water, poisoned food.
我们听到有太多空气污染，水污染，有毒食品的报道。