在前人研究成果的基础上，他对致病原因进行了阐述的翻译：In the study of the predecessors on the basis of the outcome of, he outlined the causes were 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

In previous studies based on the results, he causes are described

In the study of the predecessors on the basis of the outcome of, he outlined the causes were

In the predecessor research results foundation, he has carried on the elaboration to the pathogenicity

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In the study of the predecessors on the basis of the outcome of, he outlined the causes were