Once upon a time, companies simply made new products and sold them. In due course, they made them, advertised them to buyers and then sold them. Now, publicity frequently comes before the sale, the production and sometimes even the design of the item, with what modern marketers like to call a “pre-announcement”.
很久以前，企业只是简单地生产新产品并进行销售。随着商业的发展，逐渐过渡到企业先生产商品，接着通过广告向消费者介绍商品，然后再进行销售。现如今，宣传推广常常在产品进入销售环节、生产环节、有时甚至是设计环节之前就已铺开，现代市场营销人士喜欢将其称作产品“预发布”。
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