Liu Guizhen, with her husband Yang Hongsheng and her younger daughter, Yang Xingyu, weeds by hand at their farm at Duanjiawan village in North China's Shanxi Province on June 13, 2017. (Photo/Xinhua)
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Liu Guizhen, with her husband Yang Hongsheng and her younger daughter, Yang Xingyu, weeds by hand at their farm at Duanjiawan village in North China's Shanxi Province on June 13, 2017. (Photo/Xinhua)
