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美国斯坦福大学的研究人员分析了111个国家的71.7万名居民的智能手机信息，以弄清他们当中的某个人每天要走多少路。分析结果显示，印尼人最懒，他们每天只走3513步。 US scientists have amassed "planetary-scale" data from people's smartphones to see how active we really are. 美国的科学家们从人们的智能手机中收集了海量数据，用来研究人们的实际活动情况。 The Stanford University analysis of 68 million days' worth of minute-by-minute data showed the average number of daily steps was 4,961. 斯坦福大学对精确到分钟、总时长相当于6800天的数据进行分析后发现，世界各地的人们平均每天走路4961步。 China was top averaging more than 6,000 a day, while Indonesia was bottom of the rankings with just 3,513. 中国人平均每天走6000多步，排名居首，而印度尼西亚人平均每天走3513步，在排名中垫底。 But the findings also uncovered intriguing details that could help tackle obesity. 研究结果还揭露了一些有趣的细节，有助于我们对抗肥胖。 Most smartphones have a built-in accelerometer that can record steps and the researchers used anonymous data from more than 700,000 people who used the Argus activity monitoring app. 大多数智能手机都有内置的加速计，可以记录行走步数，研究者们还使用了70多万人在活动监测软件Argus上的匿名数据。 | 
