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Physical distancing measures may need to be in place intermittently until 2022, scientists have warned in an analysis that suggests there could be resurgences of Covid-19 for years to come. 科学家在一项分析报告中警告称，间歇性的隔离措施可能需要持续到2022年。这项报告指出，未来几年，新冠疫情可能会卷土重来。 The paper, published in the journal Science, concludes that a one-time lockdown will not be sufficient to bring the pandemic under control and that secondary peaks could be larger than the current one without continued restrictions. 这份发表在《科学》期刊上的研究报告得出结论说，一时的封锁将不足以控制全球性流行病，如果没有持续的限制措施，第二次疫情高峰可能会比目前这次更严重。 One scenario predicted a resurgence could occur as far in the future as 2025 in the absence of a vaccine or effective treatment. 该研究的一次场景模拟预测，在没有疫苗或有效治疗方法的情况下，新冠肺炎疫情可能会在2025年再度袭来。 | 
