semi·of·fi·cial /-əˈfɪʃəl/
  (a.)半官方的
  Sem·i·of·fi·cial a. Half official; having some official authority or importance; as, a semiofficial statement. -- Sem*i*of*fi*cial*ly, adv.
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  semiofficial
       adj : having some official authority or sanction