急求一篇关于空气污染的英文小作文,120字左右的.
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There is no denying that automobiles are indications of civilization,progress and development; nevertheless ,automobiles cause the serious problem of air pollution.Scientists have warned that unless effective measures are taken,the problem of pollution will eventually get out of hand.Actually,people are showing a real concern over the problem.For example,there is an increasingly loud voice from the public for firm action against pollution from automobiles