Eutrophication is a worldwide environmental problem and has become the research focus nowadays.

湖泊富营养化是当前一个世界性的环境问题和研究焦点。

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Eutrophication is a worldwide environmental problem and has become the research focus nowadays.

湖泊富营养化是当前一个世界性的环境问题和研究焦点。

youdao