paper trail

noun
🔊/ˈpeɪpə treɪl/
🔊/ˈpeɪpər treɪl/
(informal)
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  1. a series of documents that provide evidence of what you have done or what has happened(揭示来龙去脉的)系列文件
    • He was a shrewd lawyer with a talent for uncovering paper trails of fraud.他是个精明能干的律师,能从一连串文件中找出诈骗的蛛丝马迹。🔊🔊