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A man wearing a face mask walks past a tree at Westonbirt, the National Arboretum near Tetbury, in Gloucestershire, Britain on Oct. 17, 2020. (Photo by Tim Ireland/Xinhua)
A man wearing a face mask walks past a tree at Westonbirt, the National Arboretum near Tetbury, in Gloucestershire, Britain on Oct. 17, 2020. (Photo by Tim Ireland/Xinhua)