Finland has emerged as the happiest nation in the world, and not for the first time.
원문출처 : https://www.cnn.com/2019/04/05/europe/finnish-schools-abroad-scli-intl/index.html
원문출처 : https://www.cnn.com/2019/04/05/europe/finnish-schools-abroad-scli-intl/index.html