垃圾信息散布者的主要目的就是提高其客户站点在搜索引擎的排名，这个过程被称为 “黑帽式搜索引擎优化（SEO）” 或 “垃圾索引”。

The primary goal of the spammers is to increase the search engine ranking for their client sites, in a process called "black hat search engine optimization (SEO)" or "Spamdexing".

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佐治亚理工学院信息安全中心一份新的报告把搜索引擎、移动电话和个人信息列为黑客攻击的首要目标。

A new Georgia Tech information Security Center report cites search engines, mobile phones and personal information as prime targets for hackers.

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分配空余空间的主要目的是使数据行的物理顺序与群集索引一致，以减少频繁重组数据的需要。

The main purpose of allocating free space is to keep the data rows in the same physical sequence as the clustering index, thus reducing the need to frequently reorganize the data.

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