NOT: Documents that contain the search word immediately after the NOT operator won't be retrieved.

Not 操作符使得包含紧跟在 NOT 后面的关键词的文档不会被返回。

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You can use wildcards, along with the not operator,!, allowing for complex selection criteria.

可以使用通配符和取反操作符！

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Let's look at an example at how sugroups using the NOT operator might be effective.

下面通过一个示例看看使用NOT操作符的sugroups的效果。

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Catholic Health Initiatives, a not-for-profit operator of 78 hospitals based in Englewood, Colo.

WSJ: Hospitals Forge New Deals With Insurers

The real cause was not operator- or even industry-related.

ECONOMIST: Free to disagree

"It's supposed to be people-to-people, not people-to-fish, " the operator said.

CNN: Eased travel to Cuba not without hurdles