这一工作的坏处是，在受污染的水域潜水会引发很多健康问题。
The problems with the job were that diving in polluted waters resulted in many health problems.
由于受生产废水及生活污水污染，鄱阳湖水体已呈现富营养化趋势，局部水域重金属污染严重。
With the waste water from living and industry production, the pollution of eutrophication and heavy metal in the Poyang Lake becomes more and more serious.
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