Sang Lei, voluntary teacher in China's Yunnan

Updated: 2016-10-12 11:05

(Xinhua)

Sang Lei, voluntary teacher in China's Yunnan

Photo taken on Sept 26, 2016 shows a student asking question to Sang Lei at Pengdang Primary School, in Nujiang Lisu autonomous prefecture of Southwest China's Yunnan province.[Photo/Xinhua]

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