Teachers check the SafePass of a student at the school on the first day of a new school year in Nicosia, Cyprus, Sept. 7, 2021. (Photo: Xinhua)
Students wearing face masks attend a class on the first day of a new school year in Nicosia, Cyprus, Sept. 7, 2021.(Photo: Xinhua)
Students arrive at a school on the first day of a new school year in Nicosia, Cyprus, Sept. 7, 2021.(Photo: Xinhua)
A student wearing a face mask is seen on the first day of a new school year in Nicosia, Cyprus, Sept. 7, 2021.(Photo: Xinhua)