People queue for COVID-19 test in London
Xinhua
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People queue outside a walk-in COVID-19 test center in London, Britain, on Sept. 17, 2020. (Photo by Ray Tang/Xinhua)
People queue outside a walk-in COVID-19 test center in London, Britain, on Sept. 17, 2020. (Photo by Ray Tang/Xinhua)
People queue outside a walk-in COVID-19 test center in London, Britain, on Sept. 17, 2020. (Photo by Ray Tang/Xinhua)