Dancers perform classic scenario of the Chinese dance drama "Flower Rains along Silk Road" to mark the 40th anniversary of its first debut in Lanzhou, northwest China's Gansu Province, May 23, 2019. "Flower Rains along Silk Road", based on the typical dance featuring the Dunhuang Mogao Grottoes in Gansu, has toured more than 40 countries and regions and performed nearly 3,000 shows since 1979. The dance drama recreates the prosperity and art along the Silk Road during the reign of the Tang Dynasty (618-907). (Xinhua/Nie Jianjiang)

A dancer performs classic scenario of the Chinese dance drama "Flower Rains along Silk Road" to mark the 40th anniversary of its first debut in Lanzhou, northwest China's Gansu Province, May 23, 2019. "Flower Rains along Silk Road", based on the typical dance featuring the Dunhuang Mogao Grottoes in Gansu, has toured more than 40 countries and regions and performed nearly 3,000 shows since 1979. The dance drama recreates the prosperity and art along the Silk Road during the reign of the Tang Dynasty (618-907). (Xinhua/Nie Jianjiang)

Dancers perform classic scenario of the Chinese dance drama "Flower Rains along Silk Road" to mark the 40th anniversary of its first debut in Lanzhou, northwest China's Gansu Province, May 23, 2019. "Flower Rains along Silk Road", based on the typical dance featuring the Dunhuang Mogao Grottoes in Gansu, has toured more than 40 countries and regions and performed nearly 3,000 shows since 1979. The dance drama recreates the prosperity and art along the Silk Road during the reign of the Tang Dynasty (618-907). (Xinhua/Nie Jianjiang)

Dancers perform classic scenario of the Chinese dance drama "Flower Rains along Silk Road" to mark the 40th anniversary of its first debut in Lanzhou, northwest China's Gansu Province, May 23, 2019. "Flower Rains along Silk Road", based on the typical dance featuring the Dunhuang Mogao Grottoes in Gansu, has toured more than 40 countries and regions and performed nearly 3,000 shows since 1979. The dance drama recreates the prosperity and art along the Silk Road during the reign of the Tang Dynasty (618-907). (Xinhua/Nie Jianjiang)

Dancers perform classic scenario of the Chinese dance drama "Flower Rains along Silk Road" to mark the 40th anniversary of its first debut in Lanzhou, northwest China's Gansu Province, May 23, 2019. "Flower Rains along Silk Road", based on the typical dance featuring the Dunhuang Mogao Grottoes in Gansu, has toured more than 40 countries and regions and performed nearly 3,000 shows since 1979. The dance drama recreates the prosperity and art along the Silk Road during the reign of the Tang Dynasty (618-907). (Xinhua/Nie Jianjiang)

Dancers perform classic scenario of the Chinese dance drama "Flower Rains along Silk Road" to mark the 40th anniversary of its first debut in Lanzhou, northwest China's Gansu Province, May 23, 2019. "Flower Rains along Silk Road", based on the typical dance featuring the Dunhuang Mogao Grottoes in Gansu, has toured more than 40 countries and regions and performed nearly 3,000 shows since 1979. The dance drama recreates the prosperity and art along the Silk Road during the reign of the Tang Dynasty (618-907). (Xinhua/Nie Jianjiang)