hire·ling /ˈhaɪ(ə)rlɪŋ/
  (a.)被工作的;專為金錢的
  Hire·ling n.  One who is hired, or who serves for wages; esp., one whose motive and interest in serving another are wholly gainful; a mercenary. “Lewd hirelings.”
  Hire·ling, a. Serving for hire or wages; venal; mercenary. “Hireling mourners.”
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  hireling
       n : a person who works only for money [syn: pensionary]
  Hireling
     a labourer employed on hire for a limited time (Job 7:1; 14:6;
     Mark 1:20). His wages were paid as soon as his work was over
     (Lev. 19:13). In the time of our Lord a day's wage was a "penny"
     (q.v.) i.e., a Roman denarius (Matt. 20:1-14).