am·a·teur /ˈæmə(ˌ)tɚ/
 業餘技藝家,愛好者
 Am·a·teur n.  A person attached to a particular pursuit, study, or science as to music or painting; esp. one who cultivates any study or art, from taste or attachment, without pursuing it professionally.
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 amateur
      adj 1: engaged in as a pastime; "an amateur painter"; "gained
             valuable experience in amateur theatricals";
             "recreational golfers"; "reading matter that is both
             recreational and mentally stimulating"; "unpaid extras
             in the documentary" [syn: recreational, unpaid]
      2: lacking professional skill or expertise; "a very amateurish
         job"; "inexpert but conscientious efforts"; "an unskilled
         painting" [syn: amateurish, inexpert, unskilled]
      n 1: someone who pursues a study or sport as a pastime
      2: does not play for pay [ant: professional]