no·va·tion /noˈveʃən/
 更新


 No·va·tion n.
 1. Innovation. [Obs.]
    I shall easily grant that novations in religion are a main cause of distempers in commonwealths.   --Laud.
 2. Law A substitution of a new debt for an old one; also, the remodeling of an old obligation; debt restructuring.

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 novation
      n : (law) the replacement of one obligation by another by mutual
          agreement of both parties; usually the replacement of one
          of the original parties to a contract with the consent of
          the remaining party