al·i·bi /ˈæləˌbaɪ/
 不在場證明辯解,託辭


 Al·i·bi n.  Law The plea or mode of defense under which a person on trial for a crime proves or attempts to prove that he was in another place when the alleged act was committed; as, to set up an alibi; to prove an alibi.

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 alibi
      n 1: (law) a defense by an accused person purporting to show that
           he or she could not have committed the crime in question
      2: a defense of some offensive behavior or some failure to keep
         a promise etc.; "he kept finding excuses to stay"; "every
         day he had a new alibi for not getting a job"; "his
         transparent self-justification was unacceptable" [syn: excuse,
          exculpation, self-justification]
      v : exonerate by means of an alibi