Workers sort out packages at a sorting center in Shanghai, east China, Nov. 11, 2015. The Singles' Day Shopping Spree, or Double-11 Shopping Spree, Chinese equivalent of Cyber Monday or Black Friday, is an annual online shopping spree falling on Nov. 11 for Chinese consumers since 2009. Each year the express delivery industry will face package peak after the shopping spree. (Photo: Xinhua/Pei Xin)
