大气、海洋和河流污染日趋严重。
The atmosphere has been polluted. Oceans and rivers have been polluted.
大气平流层中存在有大量的臭氧,它们若是在地球表面则会造成空气污染,空气中的臭氧会严重破坏人的肺部。
The stratosphere holds an natural amount of ozone, but by Earth's surface this becomes air pollution.
人类正面临一个严重的问题,大气污染,这个问题变得越来越严重。
Human beings are facing a big problem, the air pollution, which is becoming more and more serious.
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