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"
   

1. exonerate by means of an alibi

1.不在犯罪现场的证明
If you have analibi, you can prove that you were somewhere else when a crime was committed.

2.借口；托词
You can say that someone has analibi when they can prove that something was not their fault.

e.g. A role as senior diplomat would be a goodalibi for his absence.
高级外交官的角色将是他缺席的上佳托词。

1. 不在場證明：从不同的角度出发,美国学者史梅莱格(Schmalleger)博士在其大作<>(第五版)中,将美国法律制度通常认可的刑事辩护事由分为了四大类[7]:第一,不在场证明(alibi第二,正当理由(justifications第三,可得宽恕(excuses

2. 犯罪现场：辩护方向检控方需要展示的首先是证明被告人不在犯罪现场(alibi)的证据. 具体说来,在法庭审判之前,辩护方只要在适当的时间并以适当的方式,将有关不在犯罪现场的证据展示给检控方,使得检控方能够进行有效的调查,其展示证据的义务即告完成.