利用先进的搜索功能，比如当你搜索当地的图书馆目录或数据库时，使用复数、关键词、通配符和布尔操作符。
Take advantage of advanced search functionality (gasp!) such as plurals, truncation, and wild-card and Boolean operators when using your local library catalog or databases.
虽然增加了开销，但目录辅助系统提供了一些在口头或简单的聚合环境中不易完成的高价值功能。
Despite the increased overhead, directory assistance systems provide a set of high-value functionality which is not easily accomplished within the confines of verbal or simple aggregate environments.
HXDLG的一项功能就是创建目录列表的HTML或XML表示。
One of the functions of HXDLG is to create either HTML or XML representations of directory listings.
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