Wei Lizhong (R), curator of Hangzhou Shizhuzhai Museum, teaches a child to make woodblock printing work during a woodblock printing exhibition of Shizhuzhai in Chengdu, capital of Southwest China's Sichuan province, April 14, 2018. The woodblock printing technique of Shizhuzhai was listed as the national intangible cultural heritage of China in 2014. [Photo/Xinhua]