Photo taken on Sept 26, 2016 shows Sang Lei carrying packages delivered from over 20 kilometers away to Pengdang Primary School,in Nujiang Lisu autonomous prefecture of Southwest China's Yunnan province. (Photo/Xinhua)
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Photo taken on Sept 26, 2016 shows Sang Lei carrying packages delivered from over 20 kilometers away to Pengdang Primary School,in Nujiang Lisu autonomous prefecture of Southwest China's Yunnan province. (Photo/Xinhua)
