第二部分分别对大众传媒和新闻信源进行了学理阐释，为后面的论述奠定理论基础。
The second part gives academic interpretations of mass media and news sources respectively, which lays a theoretical foundation for the latter explications.
第二部分分别对大众传媒和新闻信源进行了学理阐释，为后面的论述奠定理论基础。
The second part gives academic interpretations of mass media and news sources respectively, which lays a theoretical foundation for the latter explications.
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