de fac·to /dɪˈfæk(ˌ)to, de, di-/
  事實上,實際上
  De fac·to  Actually; in fact; in reality; as, a king de facto, -- distinguished from a king de jure, or by right.
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  Fac·to adv.  Law In fact; by the act or fact.
  De facto. Law See De facto.
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  de facto
       adj : existing in fact whether with lawful authority or not; "de
             facto segregation is as real as segration imposed by
             law"; "a de facto state of war" [syn: actual, factual]
             [ant: de jure]
       adv : in reality or fact; "the result was, de facto, a one-party
             system"