词典释义：
释义
n.
a claim or piece of evidence that one was elsewhere when an act, typically a criminal one, is alleged to have taken place
（尤指犯罪行为发生时某人）不在现场的证词(或证据)
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she has an alibi for the whole of yesterday evening 她有昨夜一整晚不在场的证据
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[mass noun]
a defence of alibi .不在现场的辩护。
〈非正式〉 借口，托辞
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a catch-all alibi for failure and inadequacy .一个对失败和不足的全能托辞。
v.
〈非正式〉 为（某人）作证，辩护（尤指提供案发当时其行踪信息）
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her friend agreed to alibi her .她的朋友答应为她作证。
词源
" late 17th cent． （as an adverb in the sense ‘elsewhere’）： from Latin, ‘elsewhere'． The noun use dates from the late 18th cent． "
