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 treach·ery /-ri/
 叛逆,背叛,變節

 Treach·er·y n.  Violation of allegiance or of faith and confidence; treasonable or perfidious conduct; perfidy; treason.
    Be ware, ye lords, of their treachery.   --Chaucer.
    In the council chamber at Edinburgh, he had contracted a deep taint of treachery and corruption.   --Macaulay.
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 treachery
      n 1: betrayal of a trust [syn: perfidy, perfidiousness]
      2: an act of deliberate betrayal [syn: betrayal, treason, perfidy]