col·lo·qui·al /kəˈlokwiəl/
  (a.)白話的,口語的,語體的
  Col·lo·qui·al a.  Pertaining to, or used in, conversation, esp. common and familiar conversation; conversational; hence, unstudied; informal; as, colloquial intercourse; colloquial phrases; a colloquial style. -- Col*lo*qui*al*ly, adv.
     His [Johnson's] colloquial talents were, indeed, of the highest order.   --Macaulay.
  ◄ ►
  colloquial
       adj : characteristic of informal spoken language or conversation;
             "wrote her letters in a colloquial style"; "the broken
             syntax and casual enunciation of conversational
             English" [syn: conversational]