People queue for COVID-19 test in London
Xinhua
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![](https://cdnpdcontent.aikan.pdnews.cn/20200918/aae23d6760144b36a270d0caf7f876e8.jpg)
People queue outside a walk-in COVID-19 test center in London, Britain, on Sept. 17, 2020. (Photo by Ray Tang/Xinhua)
![](https://cdnpdcontent.aikan.pdnews.cn/20200918/c8e3626ab87344ee94ef62e351fbf8c5.jpg)
People queue outside a walk-in COVID-19 test center in London, Britain, on Sept. 17, 2020. (Photo by Ray Tang/Xinhua)
![](https://cdnpdcontent.aikan.pdnews.cn/20200918/08b3af06e7ea4c46ae36c103bd332562.jpg)
People queue outside a walk-in COVID-19 test center in London, Britain, on Sept. 17, 2020. (Photo by Ray Tang/Xinhua)