malingerer
  詐病者; 裝病者
  Ma·lin·ger·er n.  In the army, a soldier who feigns himself sick, or who induces or protracts an illness, in order to avoid doing his duty; hence, in general, one who shirks his duty by pretending illness or inability.
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  malingerer
       n : someone shirking their duty by feigning illness or
           incapacity [syn: skulker, shammer]