Searching: Our customers will have the ability to perform keyword-based searches of their email.

搜索：我们的客户将有能力进行基于关键字的搜索他们的电子邮件。

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Multiple sections can be added to a user's Google News homepage, creating a customized, keyword-based digest.

用户可以把多个版块添加到Google新闻首页中去，从而把Google新闻变成一份个性化、基于关键词的报纸。

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You can also create functions and methods with keyword-based arguments — a nice break from the standard positional arguments you see in PHP.

您还可以创建使用关键字作为参数的函数和方法 — 这与 PHP 中的标准位置参数迥然不同。

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Carriers could presumably share the revenues generated by Google's keyword-based ads.

FORBES: Magazine Article

Instead of focusing on real, meaning-based relevancy, they supplement their keyword-based algorithms by counting the number of links that lead to a page and factoring the page's popularity into its placement in search results.

FORBES: Magazine Article

Over the past 15 years, most folks have learned to appreciate competitive keyword advertising based on their first-hand positive experiences using it.

FORBES: Florida Proposes to Ban Competitive Keyword Advertising by Lawyers