com·pli·cat·ed /ˈkɑmpləˌketəd/
  (a.)複雜的,麻煩的,難解的
  Com·pli·cate v. t. [imp. & p. p. Complicated; p. pr. & vb. n. Complicating.] To fold or twist together; to combine intricately; to make complex; to combine or associate so as to make intricate or difficult.
     Nor can his complicated sinews fail.   --Young.
     Avarice and luxury very often become one complicated principle of action.   --Addison.
     When the disease is complicated with other diseases.   --Arbuthnot.
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  complicated
       adj : difficult to analyze or understand; "a complicated problem";
             "complicated Middle East politics"