Air pollution is extremely serious, especially in cities with heavy industry.
空气污染相当严重,一些重工业城市尤为严重。
In cities of China, industry produces heavy pollution, the related harmful effect has drawn extensive concern.
我国城市工业污染严重,其不良健康效应倍受关注;
Cities all around the world were hit hard, especially those dependent on heavy industry.
世界各地都很难被击中,特别是那些依赖于重工业。
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