Searching for documents containing particular terms requires looking up indexes that map terms to the documents that contain them.

搜索包含特定词的文件，是需要查询文档索引的，这些索引映射了词与文档的关系。

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Despite yields of 4% and up, utility indexes lost 28% to 32% in 2008.

尽管收益率在4%以上，公用事业指数2008年下跌了28% - 32%。

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Break up the secondary indexes into pieces in order to achieve parallelism (see discussion below entitled PIECESIZE).

将辅助索引拆分成数块，以实现并行性(请参阅下面题为PIECESIZE的讨论)。

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Participants are also learning that conjuring up new indexes to hedge against risk is not always foolproof or risk free.

FORBES: Fact and Comment

Although everyone recognizes the country's fiscal hole, investors have embraced Japanese equities, pushing up their indexes by 25% in 2005.

FORBES: Question One

Monetary errors don't show up in indexes for at least a year.

FORBES: When Will We Get the Answers?