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Students follow markers on the ground as they walk in a high school in Rome, Italy, Sept. 14, 2020. Millions of students returned to schools in Italy Monday. (Photo by Elisa Lingria/Xinhua)
Students follow markers on the ground as they walk in a high school in Rome, Italy, Sept. 14, 2020. Millions of students returned to schools in Italy Monday. (Photo by Elisa Lingria/Xinhua)