Through the analysis on the social background, cultural background and media background of sport media grading, the article points out the problems and challenges sport media grading is facing.
通过对体育媒介分层社会背景、文化背景、媒介背景的分析，指出了体育媒介分层所面临的问题和挑战。
Through the analysis on the social background, cultural background and media background of sport media grading, the article points out the problems and challenges sport media grading is facing.
通过对体育媒介分层社会背景、文化背景、媒介背景的分析，指出了体育媒介分层所面临的问题和挑战。
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