For comparison, let's perform a similar indexed search against a file database (some additional search terms are used to keep the result list reasonable).

为进行比较，让我们对文件数据库执行类似的索引搜索(使用了一些额外的搜索术语以使结果列表保持合理)。

youdao

It seems obvious that your pages must be indexed before a search engine can find them, but most pages aren't indexed.

显然，页面必须先被编入索引，然后搜索引擎才能找到它们，但是大多数页面没有被编入索引。

youdao

Video and metadata are also stored and indexed automatically for subsequent search and retrieval.

视频和元数据还能存储和自动编入索引，以供以后搜索和检索。

youdao

However, it said, the links were then posted elsewhere online which led to them being indexed on search engines.

BBC: Facebook flaw bypasses password protections

Blinkx bills itself as the world's largest video search engine and says it has indexed more video, audio and TV shows on the Web than anyone: 35 million hours of it.

FORBES: Magazine Article

These data come from a search of more than 500 news outlets indexed in the LexisNexis "U.S. Newspapers and Wires" database.

CNN: How media lose interest in gun control