Staff members work at the distribution center of an express company in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Nov. 12, 2018. More than 1.35 billion parcels were generated during the shopping spree on major e-commerce platforms on Nov. 11, 2018, data from China's State Post Bureau showed. China's e-commerce giant Alibaba launched the annual online shopping promotion on Nov. 11, 2009, a day celebrated by many Chinese young people as Singles' Day. (Xinhua/Wang Peng)

A staff member works at the distribution center of an express company in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Nov. 12, 2018. More than 1.35 billion parcels were generated during the shopping spree on major e-commerce platforms on Nov. 11, 2018, data from China's State Post Bureau showed. China's e-commerce giant Alibaba launched the annual online shopping promotion on Nov. 11, 2009, a day celebrated by many Chinese young people as Singles' Day. (Xinhua/Wang Peng)

Staff members work at the distribution center of an express company in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Nov. 12, 2018. More than 1.35 billion parcels were generated during the shopping spree on major e-commerce platforms on Nov. 11, 2018, data from China's State Post Bureau showed. China's e-commerce giant Alibaba launched the annual online shopping promotion on Nov. 11, 2009, a day celebrated by many Chinese young people as Singles' Day. (Xinhua/Wang Peng)

Staff members work at the distribution center of an express company in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Nov. 12, 2018. More than 1.35 billion parcels were generated during the shopping spree on major e-commerce platforms on Nov. 11, 2018, data from China's State Post Bureau showed. China's e-commerce giant Alibaba launched the annual online shopping promotion on Nov. 11, 2009, a day celebrated by many Chinese young people as Singles' Day. (Xinhua/Wang Peng)

A staff member works at the distribution center of an express company in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Nov. 12, 2018. More than 1.35 billion parcels were generated during the shopping spree on major e-commerce platforms on Nov. 11, 2018, data from China's State Post Bureau showed. China's e-commerce giant Alibaba launched the annual online shopping promotion on Nov. 11, 2009, a day celebrated by many Chinese young people as Singles' Day. (Xinhua/Wang Peng)

Staff members work at the distribution center of an express company in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Nov. 12, 2018. More than 1.35 billion parcels were generated during the shopping spree on major e-commerce platforms on Nov. 11, 2018, data from China's State Post Bureau showed. China's e-commerce giant Alibaba launched the annual online shopping promotion on Nov. 11, 2009, a day celebrated by many Chinese young people as Singles' Day. (Xinhua/Wang Peng)