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Before the discovery of DNA profiling in the 1980s, fingerprints were the easiest way to solve serious crimes. 在上世纪80年代DNA分析技术问世之前，指纹是破解重大刑事案件最容易的方法。 It’s believed that of the 7 billion or so people on Earth, each one of us has our own unique fingerprints. 人们相信，在地球约70亿的人口中，每个人的指纹都独一无二。 But did you know that our fingerprints could actually reveal a lot more about us than just our identity? 但你知道吗？除了我们的身份，指纹其实还可以透露更多信息。 | 
