Word of mouth advertising happens when one person tells another about a good experience with a product or service.

当一个人告诉另一个人对产品或服务的良好体验时，口碑广告就发生了。

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After determining the target audience for a product or service, advertising agencies must select the appropriate media for the advertisement.

在确定产品或服务的目标受众后，广告公司必须为广告选择合适的媒介。

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Marketing focuses on selling your product or service, attracting customers through advertising, and also building relationships with customers.

市场营销的重点在于销售产品或服务，通过广告来吸引客户，同时与客户建立关系。

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Many plans fail to show how a product or service meets a need.

VOA: special.2009.06.26

We need to choose the one or two that are really going to drive and sustain the network and the service and the product As an editor, I am effectively just the chief editor of the company.

我需要选择那一件或两件,会真的带动这个网络，服务，产品,让它们持续发展的事情,拿编辑打比方，我就是公司有效率的总编。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

An entrepreneur's product or service must sound feasible and marketable, enough to convince people to become investors.

VOA: standard.2010.01.31

When an opportunity is over, users can instantly give testimonials on the product or service offered.

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It is designed to build brand consideration and affinity, not sell a product or service.

FORBES: Using Branded Content In Your Content Marketing Arsenal

However, we must also consider the nature of the product or service at issue.

FORBES: The Internet Age And The "Hot News" Doctrine Converge