主体 - 放置存放内容主体的画布的区域。

body - Region to place a canvas for the content body.

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以新闻、资讯、娱乐为内容主体的大众传媒文化，活力空前彰显，自有它内的社会机理。

The massive media culture based on news, information and enjoyment as main content has dynamic force and has its inner social mechanism.

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在演讲的主体内容中，胡安只涉及了地震的基本力学，小心翼翼地避免了使用专业术语。

Throughout the body of the speech, Juan dealt only with the basic mechanics of the earthquakes, carefully avoid technical terms.

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