The expression limits the number of branches that the database has to search to find the relevant elements.

这个表达式限制了数据库找到相关结果所必须搜索的分支的数量。

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This of course limits the flexibility of your search, but it scales much better.

这固然限制了搜索的灵活性，但得到了更好的伸缩性。

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Google, citing Beijing's tightening limits on expression and a series of cyber attacks on it and other foreign companies, said it would no longer filter search results on the site.

谷歌说，将不再过滤Google . cn网站的搜索结果，原因是北京方面加大了对言论的限制以及一系列针对谷歌等外国企业的网络攻击。

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In a culture that encourages the constant search for the limits of human achievement, we, the fans, the consumers of popular sports entertainment, revel in record-breaking, gravity-defying, barely believable feats on the field of play.

CNN: Opinion: It's time to allow doping in sport

Separate from Graph Search, Facebook already limits some content posted by minors to "Friends of Friends" only, even if the young user has made it public.

CNN: Doug Gross,

And that limits the utility of any search.

FORBES: Facebook Already Had Advanced Search Seven Years Ago