科研之友
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<正>比利·巴尔是科罗拉多州哥特镇唯一的全职居民。近50年来,他一直保持社交距离,并就此给人们提出了一些建议。Billy Barr is the only full-time resident of Gothic, Colo. He has been social distancing for almost 50 years. He lives in an abandoned silver mine at nearly 10,000 feet in altitude in the Rocky Mountains. When he first got here,
