mass media

名词 mass medium:

1. (usually plural) transmissions that are disseminated widely to the public
   同义词：medium, mass medium

1. The character projected to the public, as by a person or an institution, especially as interpreted by the mass media.
   模范，典范由某组织或某个人向大众推荐的人物，往往通过大众媒介作宣传
2. Mass media is very important for advertisements.
   大众媒介对广告来说很重要。