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A student attends the second level Lanna script class at the school inside Wat Phra Singh, a famous temple in Chiang Mai, Thailand, July 7, 2019. (Xinhua/Yang Zhou)

A student attends the second level Lanna script class at the school inside Wat Phra Singh, a famous temple in Chiang Mai, Thailand, July 7, 2019. (Xinhua/Yang Zhou)