clas·si·fied /ˈklæsəˌfaɪd/
  (a.)分類的,類別的,被指定為機密的
  Clas·si·fy v. t. [imp. & p. p. Classified p. pr. & vb. n. Classifying.]  To distribute into classes; to arrange according to a system; to arrange in sets according to some method founded on common properties or characters.
  Syn: -- To arrange; distribute; rank.
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  classify
       v 1: arrange or order by classes or categories; "How would you
            classify these pottery shards--are they prehistoric?"
            [syn: class, sort, assort, sort out, separate]
       2: declare unavailable, as for security reasons; "Classify
          these documents" [ant: declassify]
       3: assign to a class or kind; "How should algae be
          classified?"; "People argue about how to relegate certain
          mushrooms" [syn: relegate]
       [also: classified]
  classified
       adj 1: arranged into classes [ant: unclassified]
       2: official classification of information or documents;
          withheld from general circulation; "thousands of
          classified documents have now been declassified" [ant: unclassified]