It is not at all clear how much the media influences public opinion and how much public opinion influences the media.

It is not at all clear how much the media influences public opinion and how much public opinion influences the media.

我们根本不清楚媒体对公众舆论的影响有多大，以及公众舆论对媒体的影响有多大。

-- Bruce Jackson 布鲁斯·杰克逊