can·on·ist /ˈkænənɪst/
  聖典學者,宗規專家
  Can·on·ist, n.  A professor of canon law; one skilled in the knowledge and practice of ecclesiastical law.
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  canonist
       adj : pertaining to or characteristic of a body of rules and
             principles accepted as axiomatic; e.g. "canonist
             communism"
       n : a specialist in canon law