alibi
/ˈælɪbaɪ; `æləˌbaɪ/ n
1 (law 律) formal statement or evidence that a person was in another place at the time of a crime 某人当时不在犯罪现场的申辩或证明
The suspects all had good alibis for the day of the robbery. 所有疑犯都有在抢劫案发当天不在犯罪现场的充足证明.
2 (infml 口) excuse of any kind 藉口; 托辞
Late again, Richard? What's your alibi this time?理查德, 又迟到了? 这次你有什么藉口呢?