vice·ge·rent /-ˈʤɪrənt/
  (a.)代理的代理,代理人
  Vice·ge·rent a.  Having or exercising delegated power; acting by substitution, or in the place of another.
  Vice·ge·rent, n. An officer who is deputed by a superior, or by proper authority, to exercise the powers of another; a lieutenant; a vicar.
     The symbol and vicegerent of the Deity.   --C. A. Young.
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  vicegerent
       n : someone appointed by a ruler as an administrative deputy