pan·dem·ic /pænˈdɛmɪk/
  (a.)全國流行的
  pan·dem·ic /pænˈdɛmɪk/ 形容詞
  廣泛流行的,大流行的,世界流行的,大流行病,洲間流行病
  Pan·dem·ic a.  Affecting a whole people or a number of countries; everywhere epidemic. -- n. A pandemic disease.
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  pandemic
       adj 1: epidemic over a wide geographical area; "a pandemic outbreak
              of malaria"
       2: existing everywhere; "pandemic fear of nuclear war"
       n : an epidemic that is geographically widespread; occurring
           throughout a region or even throughout the world