广告是在一种完全被控的环境下传递给目标受众一种非常清晰而且特定的信息。它出现的时间和地点是完全被事先固定了的．这使得它的信息传递过程是相对简单的。但是．广告的最大缺点是它无法实现与观众的互动。虽然．在广告播出时．它的目标受众也许可能听到或看到这条广告．可是．商家通过这条广告所要传达的品牌或产品信息并无法保证能够传递给目标受众并为之接受。 Advertising is a very clear and specific message delivered to a target audience in a completely controlled environment. The time and place it appeared were completely fixed in advance. This makes its message passing process relatively easy. but. The biggest disadvantage of advertising is that it can not interact with the audience. although. When the ad is broadcast Its target audience may be able to hear or see this ad. but. The brand or product information that a merchant passes through this ad does not guarantee delivery to, and acceptance by, the intended audience.