The simplest kind of advertising is the classified AD.

最简单的一种广告就是分类广告。

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As more advertising budgets rush to the Internet, available quality AD inventory will continue shrinking.

因为越来越多的广告预算在投入网络，可用的资源将进一步短缺。

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Display advertising represents roughly 20% of all online AD revenue.

展开式广告目前在全部在线广告收入中占20%左右。

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or an ad campaign if you are working in advertising

或者一个广告活动，如果你在广告界工作，

英国的影视产业 - SpeakingMax英语口语达人

"In the early days of television advertising, the audience accepted the ad character merely because it was a big deal to be on TV, " explains Warren Dotz, author of Meet Mr. Product: The Art of the Advertising Character and the upcoming Ad Boy: Vintage Advertising with Character.

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These efficiency measures reduce ad effects, misleading marketing managers to choose further spiraling reductions in advertising costs and ad effects.

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Fortunately, marketers are beginning to prioritize their mobile advertising efforts toward ad models that are an alternative to click-based models, such as signup advertising.

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