bungler
  笨拙者;經驗不夠的
  Bun·gler n. A clumsy, awkward workman; one who bungles.
     If to be a dunce or a bungler in any profession be shameful, how much more ignominious and infamous to a scholar to be such!   --Barrow.
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  bungler
       n : someone who makes mistakes because of incompetence [syn: blunderer,
            fumbler, bumbler, stumbler, sad sack, botcher,
            butcher, fuckup]