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1. Oxford American Dictionary

   information retrieval

   • IPA[ˌinfərˈmāSHən rəˌtrēvəl]

   • n.
     the tracing and recovery of specific information from stored data

   • noun: information retrieval

2. • 釋義

   n.

   名詞

   • 1. the tracing and recovery of specific information from stored data an information retrieval system