谷歌如何在搜索页面上填充链接描述？
我认为这完全是由元“描述”标签决定的。但我注意到 SO 不使用此标签，并且在谷歌搜索中对其链接有描述。
我还没有为我正在开发的网站添加元标签（在谷歌搜索中它只显示我网站的标题，没有描述），但是为我网站上的每个页面添加元描述标签是否有用（并且因为该网站有点像用户生成的博客，我想我需要动态填充元标记）？谢谢
I assumed it was strictly by the meta 'description' tag. But I noticed that SO doesn't use this tag and has descriptions for its links in google search.
I have not yet added meta tags for the site I'm developing (and in google search it just shows the title of my site with no description), but would it be useful to include meta description tags for each page on my site (and since the site is kind of like a user generated blog, I guess I would need to dynamically populate the meta tag)? Thanks
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如果 Google 可以在页面上找到包含用户搜索词的某些文本，它将显示该文本，并突出显示搜索词。
如果找不到这样的文本，它将使用元描述。
If Google can find some text on the page that contains the user's search terms, it will display that, and highlight the search terms.
If it can't find such text, it will use the meta description.
是的，您必须为每个页面编写元描述，因为它在读者单击之前为读者提供了简洁的摘要。如果未编写元描述，则 Google 会自动从页面中提取信息并突出显示与搜索查询匹配的关键字。
如果您想了解搜索引擎的工作方式和内容以及获得高点击率的最佳实践，请阅读此http://www.searchenabler.com/blog/meta-description-tags-complete-guide/ 或者您也可以按照 http://www.quora.com/What-are -测试元描述有效性的一些好方法。
它将为您的查询提供适当且更好的信息。
Yes, you have to write meta description to every page since it gives the reader a concise summary before clicking it. If the meta description is not written then Google automatically pulls up the information from the page and highlight the keyword matching the search query.
If you want to know how and what search engines work and the best practices to gain high click through rate then read up this http://www.searchenabler.com/blog/meta-description-tags-complete-guide/ or else you can also follow the http://www.quora.com/What-are-some-good-ways-to-test-the-effectiveness-of-meta-descriptions.
It would give you an appropriate and better information for your query.