"Happiness," spell the large letters on the chalkboard in a classroom in the Government Boys' Senior Secondary School in the southwest of India's capital, Delhi.
원문출처 : https://www.cnn.com/2018/07/18/health/india-delhi-happiness-classes-intl/index.html
원문출처 : https://www.cnn.com/2018/07/18/health/india-delhi-happiness-classes-intl/index.html