Lu Yefa reads the sea manual he wrote in Caotang village of Qionghai city in South China's Hainan province on June 14, 2016. (Photo: China News Service/Luo Yunfei)
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Lu Yefa reads the sea manual he wrote in Caotang village of Qionghai city in South China's Hainan province on June 14, 2016. (Photo: China News Service/Luo Yunfei)