Photo taken on June 3, 2018 shows flowers along a road in Qingdao, East China's Shandong province. The 18th Shanghai Cooperation Organization (SCO) Summit is scheduled for June 9 to 10 in Qingdao. [Photo/Xinhua]  

Photo taken on June 4, 2018 shows installations made of flowers in Qingdao, East China's Shandong province. The 18th Shanghai Cooperation Organization (SCO) Summit is scheduled for June 9 to 10 in Qingdao. [Photo/Xinhua]  

Photo taken on June 4, 2018 shows flowers at Wusi Square in Qingdao, East China's Shandong province. The 18th Shanghai Cooperation Organization (SCO) Summit is scheduled for June 9 to 10 in Qingdao. [Photo/Xinhua]