Car traffic, industries and agriculture are the main sources of pollution of London and areas nearby.
汽车，工业和农业是伦敦及其城郊的主要污染源。
Agriculture is the main non-point pollution sources.
农业是主要的非点状污染源。
Sources of pollution in general is divided into 3 categories: industry, life and agriculture.
污染源一般主要分为3类：工业、生活和农业。
Sources of pollution in general is divided into 3 categories: industry, life and agriculture.
污染源一般主要分为3类：工业、生活和农业。
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