首先，我们需要定义 PPC 并向您概述 PPC 广告的工作原理。
第一的 让我们 只是 very briefly describe what it is.
You probably already know how search engines work and how SEO can help your Web site get a better ranking right?Â
好， sometimes even the best SEO strategy is just not enough.
也许最重要的一步是 关键词研究.Â keyword you want to optimize for could be facing some really tough competition. And you are simply unable to make it to the top results.Â Or you can just use PPC.Â
B实际上， even if your SEO是 not strong enough, your link can appear in the search results 页面感谢 PPC 广告。