它的运作流程如下：广告客户对他们所认为的潜在消费者所感兴趣的关键词进行投标。

It works like this. Advertisers bid on keywords that they believe potential customers will be interested in.

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因此，广告商更多地投标常用词。

As a result, advertisers would have to bid for more common terms.

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她翻遍了招工广告，但一无所获。最后她决定到一家叫做Elance的服务网站登求职广告，那上面允许自由职业者投标竞争公司计件工作。

Eventually she decided to advertise for work on a service called elance, which allows freelancers to bid for corporate piecework.

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