Broadcast-television advertising has suffered from audience fragmentation as channels have proliferated.

频道（数量）激增，观众群过于分散，广播电视的广告业务深受其害。

youdao

Broadcast-television advertising has suffered from audience fragmentation as channels have proliferated.

频道（数量）激增，观众群过于分散，广播电视的广告业务深受其害。

youdao