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Refugee and migrant children enjoy a school break with their teacher inside the Schisto refugee camp in Schisto, Greece on Oct. 4, 2018. World Teacher's Day is held annually on Oct. 5. (Xinhua/Lefteris Partsalis)
Refugee and migrant children enjoy a school break with their teacher inside the Schisto refugee camp in Schisto, Greece on Oct. 4, 2018. World Teacher's Day is held annually on Oct. 5. (Xinhua/Lefteris Partsalis)