cor·re·late /ˈkɔrələt, ˈkɑr, ˌlet/
 有相互關係的東西,相關物(vt.)使有相互關係(vi.)互相有關係
 Cor·re·late n. One who, or that which, stands in a reciprocal relation to something else, as father to son; a correlative.
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 Cor·re·late v. i. [imp. & p. p. Correlated; p. pr. & vb. n. Correlating.]  To have reciprocal or mutual relations; to be mutually related.
    Doctrine and worship correlate as theory and practice.   --Tylor.
 Cor·re·late, v. t. To put in relation with each other; to connect together by the disclosure of a mutual relation; as, to correlate natural phenomena.
 correlate
      adj : mutually related [syn: correlative, correlated]
      n : either of two correlated variables [syn: correlative]
      v 1: to bear a reciprocal or mutual relation; "Do these facts
           correlate?"
      2: bring into a mutual, complementary, or reciprocal relation;
         "I cannot correlate these two pieces of information"