词典释义：
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Yahoo is the oldest and best-known Web directory service.
雅虎是提供网上目录检索服务最早、最知名的网站。
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You can use a directory service to search for people on the Internet.
你可以使用目录服务在因特网上搜索人。
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You can equate that to an LDAP directory service.
您可以将之与LDAP目录服务等同起来。
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The directory service doesn't even need to use LDAP.
目录服务甚至不需要使用 LDAP。
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The directory service encountered an unknown failure.
目录服务遇到一个未知故障。
A directory service is simply the software system that stores,organizes and provides access to information in a directory.In software engineering,a directory is a map of the differences between names and values.It allows the lookup of values given a name,similar to a dictionary.As a word in a dictionary may have multiple definitions,in a directory,a name may be associated with multiple,different pieces of information.Like wise,as a word may have different parts of speech and different definitions,a name in a directory may have many different types of data.