Wu Guoquan (2nd R), economic and commercial counselor of the Chinese Embassy to Cambodia, hands over a set of hygiene and learning supplies to a pre-school teacher in Prek Pnov district, Phnom Penh, Cambodia on Oct. 21, 2020. China, through the United Nations Children's Fund (UNICEF), has provided hygiene and learning supplies to 3,064 community pre-schools across Cambodia, allowing some 70,000 children to return to school safely, with better protection from the COVID-19. (Photo by Sovannara/Xinhua)