Students receive training at a Peking Opera class in Xichang Primary School in Haian County of Nantong, east China's Jiangsu Province, May 26, 2018. China has issued guidelines to promote traditional opera in schools nationwide. Peking Opera, listed by UNESCO as an intangible cultural heritage, is the most famous among hundreds of forms of local opera in China. (Photos: Xinhua)

A teacher draws opera make-up for a student at Xichang Primary School in Haian County of Nantong, east China's Jiangsu Province, May 26, 2018. China has issued guidelines to promote traditional opera in schools nationwide. Peking Opera, listed by UNESCO as an intangible cultural heritage, is the most famous among hundreds of forms of local opera in China.

Students practice Peking Opera at Xichang Primary School in Haian County of Nantong, east China's Jiangsu Province, May 26, 2018. China has issued guidelines to promote traditional opera in schools nationwide. Peking Opera, listed by UNESCO as an intangible cultural heritage, is the most famous among hundreds of forms of local opera in China.

Students practice Peking Opera at Xichang Primary School in Haian County of Nantong, east China's Jiangsu Province, May 26, 2018. China has issued guidelines to promote traditional opera in schools nationwide. Peking Opera, listed by UNESCO as an intangible cultural heritage, is the most famous among hundreds of forms of local opera in China.

Students receive training at a Peking Opera class in Xichang Primary School in Haian County of Nantong, east China's Jiangsu Province, May 26, 2018. China has issued guidelines to promote traditional opera in schools nationwide. Peking Opera, listed by UNESCO as an intangible cultural heritage, is the most famous among hundreds of forms of local opera in China.

Students practice Peking Opera at Xichang Primary School in Haian County of Nantong, east China's Jiangsu Province, May 26, 2018. China has issued guidelines to promote traditional opera in schools nationwide. Peking Opera, listed by UNESCO as an intangible cultural heritage, is the most famous among hundreds of forms of local opera in China.

Students practice Peking Opera at Xichang Primary School in Haian County of Nantong, east China's Jiangsu Province, May 26, 2018. China has issued guidelines to promote traditional opera in schools nationwide. Peking Opera, listed by UNESCO as an intangible cultural heritage, is the most famous among hundreds of forms of local opera in China.

Students practice Peking Opera at Xichang Primary School in Haian County of Nantong, east China's Jiangsu Province, May 26, 2018. China has issued guidelines to promote traditional opera in schools nationwide. Peking Opera, listed by UNESCO as an intangible cultural heritage, is the most famous among hundreds of forms of local opera in China.

Students practice Peking Opera at Xichang Primary School in Haian County of Nantong, east China's Jiangsu Province, May 26, 2018. China has issued guidelines to promote traditional opera in schools nationwide. Peking Opera, listed by UNESCO as an intangible cultural heritage, is the most famous among hundreds of forms of local opera in China.

Students practice Peking Opera at Xichang Primary School in Haian County of Nantong, east China's Jiangsu Province, May 26, 2018. China has issued guidelines to promote traditional opera in schools nationwide. Peking Opera, listed by UNESCO as an intangible cultural heritage, is the most famous among hundreds of forms of local opera in China.