The rainwater is one of carriers of pollutants in urban-environment, and the polluted rainwater has been important urban non-point source pollution.
雨水是城市环境中各种污染物的载体之一，受污染的雨水已经成为重要的城市非点源污染。
The rainwater is one of carriers of pollutants in urban-environment, and the polluted rainwater has been important urban non-point source pollution.
雨水是城市环境中各种污染物的载体之一，受污染的雨水已经成为重要的城市非点源污染。
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