因为你可以把你的广告免费挂在各大搜索引擎搜索结果的第一位。
Because you can hang your ads for free in the major search engines search results first.
你正在免费读这篇文章，但这个出版物通过在你看的页面上卖广告赚钱。
You're reading this for free, but the publication makes money by selling the advertising you see on this page.
一个免费的单曲或免费的专辑是你生活秀、生意和品牌的免费广告。
A free single or free album is free advertising for your live show oryour merchandise or your brand.
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