They can filter out certain words from visited sites or scan for viruses.

它们可以过滤掉来自被访问站点的特定词汇或可以扫描病毒。

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In the final step, the user-defined function (UDF) itself is evaluated to filter out all false positive candidates, in other words, remove all non-equal strings.

在最后一步，对用户定义函数(UDF)本身求值，以过滤掉所有误判的候选者，即去掉所有不相等的字符串。

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The newscaster's words did filter everywhere in America, however, and history may have shifted in a different direction as a result.

然而，这位新闻播音员的话的的确确传遍了整个美国，结果历史也转向了另一个方向。

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After learning the results of a men's diving event on Monday, Ryan Sullivan used TweetDeck, an application owned by Twitter, to filter out the words "Olympic, " "Olympics, " and "London2012" from his feed.

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