Don't rely exclusively on a single secondary source for information or opinion in a research paper.
在一篇研究论文中，不要在信息或观点上排他性地依赖单独一处二手资料。
Copying from a single source is called plagiarism, copying from multiple source is called research.
从一个资源上复制叫剽窃，从多种资源上复制就叫研究。
The research on non-point source pollution based on single event is comparatively mature, but there are few studies on continuously modeling in China.
基于单场洪水的非点源污染研究已相对成熟，而有关非点源污染连续模拟的研究在我国相对较少。
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