Students raise their hands during a class on the first day of the new school year in the West Bank city of Nablus, Aug. 16, 2021. More than a million students in the West Bank and the Gaza Strip have returned on Monday to their schools after several months of school closure due to the spread of the coronavirus. (Photo by Ayman Nobani/Xinhua)

Students line up to attend school on the first day of the new school year in Gaza City, Aug. 16, 2021. More than a million students in the West Bank and the Gaza Strip have returned on Monday to their schools after several months of school closure due to the spread of the coronavirus. (Photo by Rizek Abdeljawad/Xinhua)

Students raise their hands during a class on the first day of the new school year in the West Bank city of Nablus, Aug. 16, 2021. More than a million students in the West Bank and the Gaza Strip have returned on Monday to their schools after several months of school closure due to the spread of the coronavirus. (Photo by Ayman Nobani/Xinhua)

Students line up to attend school on the first day of the new school year in Gaza City, Aug. 16, 2021. More than a million students in the West Bank and the Gaza Strip have returned on Monday to their schools after several months of school closure due to the spread of the coronavirus. (Photo by Rizek Abdeljawad/Xinhua)

Students attend school on the first day of the new school year in Gaza City, Aug. 16, 2021. More than a million students in the West Bank and the Gaza Strip have returned on Monday to their schools after several months of school closure due to the spread of the coronavirus. (Photo by Rizek Abdeljawad/Xinhua)