cos·mo·pol·i·tan /ˌkɑzməˈpɑlətṇ/
 四海為家的人


 Cos·mo·pol·i·tan Cos·mop·o·lite n.  One who has no fixed residence, or who is at home in every place; a citizen of the world.


 Cos·mo·pol·i·tan, Cos·mop·o·lite, a.
 1. Having no fixed residence; at home in any place; free from local attachments or prejudices; not provincial; liberal.
    In other countries taste is perphaps too exclusively national, in Germany it is certainly too cosmopolite.   --Sir W. Hamilton.
 2. Common everywhere; widely spread; found in all parts of the world.
    The Cheiroptera are cosmopolitan.   --R. Owen.

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 cosmopolitan
      adj 1: growing or occurring in many parts of the world; "a
             cosmopolitan herb"; "cosmopolitan in distribution"
             [syn: widely distributed] [ant: endemic]
      2: composed of people from or at home in many parts of the
         world; especially not provincial in attitudes or
         interests; "his cosmopolitan benevolence impartially
         extended to all races and to all creeds"- T.B. Macaulay;
         "the ancient and cosmopolitan societies of Syria and
         Egypt"; "that queer, cosmopolitan, rather sinister crowd
         found around the Marseilles docks" [ant: provincial]
      3: of worldwide scope or applicability; "an issue of
         cosmopolitan import"; "the shrewdest political and
         ecumenical comment of our time"- Christopher Morley;
         "universal experience" [syn: ecumenical, oecumenical,
         general, universal, worldwide]
      n : a sophisticated person who has travelled in many countries
          [syn: cosmopolite]