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A staff member works with silkworm cocoons at a collecting station in Hai'an City, east China's Jiangsu Province, June 2, 2018. Hai'an is known for its silk cocoon industry. (Xinhua/Gu Huaxia)
A staff member works with silkworm cocoons at a collecting station in Hai'an City, east China's Jiangsu Province, June 2, 2018. Hai'an is known for its silk cocoon industry. (Xinhua/Gu Huaxia)