Si Junjie checks blueberry to be sold in Yiyuan County of Zibo City, east China's Shandong Province, July 5, 2019. Yang Riliang and Si Junjie, a couple from Boshan Village of Shiqiao Township in Zibo City, promotes their blueberry through live streaming. After returning to hometown in 2014, the couple established a blueberry planting base, covering an area over 100 mu (about 6.7 hectares). Since 2017, the couple has used online sales platform as a new way to expand sales. By presenting planting and wrapping process to customers, the couple is awarded great popularity and profit. (Photo by Zhao Dongshan/Xinhua)

　　Si Junjie sorts blueberry to be sold in Yiyuan County of Zibo City, east China's Shandong Province, July 5, 2019. Yang Riliang and Si Junjie, a couple from Boshan Village of Shiqiao Township in Zibo City, promotes their blueberry through live streaming. After returning to hometown in 2014, the couple established a blueberry planting base, covering an area over 100 mu (about 6.7 hectares). Since 2017, the couple has used online sales platform as a new way to expand sales. By presenting planting and wrapping process to customers, the couple is awarded great popularity and profit. (Photo by Zhao Dongshan/Xinhua)

　　Si Junjie picks blueberry in fields in Yiyuan County of Zibo City, east China's Shandong Province, July 5, 2019. Yang Riliang and Si Junjie, a couple from Boshan Village of Shiqiao Township in Zibo City, promotes their blueberry through live streaming. After returning to hometown in 2014, the couple established a blueberry planting base, covering an area over 100 mu (about 6.7 hectares). Since 2017, the couple has used online sales platform as a new way to expand sales. By presenting planting and wrapping process to customers, the couple is awarded great popularity and profit. (Photo by Zhao Dongshan/Xinhua)

　　Si Junjie sorts and wraps blueberry to be sold in Yiyuan County of Zibo City, east China's Shandong Province, July 5, 2019. Yang Riliang and Si Junjie, a couple from Boshan Village of Shiqiao Township in Zibo City, promotes their blueberry through live streaming. After returning to hometown in 2014, the couple established a blueberry planting base, covering an area over 100 mu (about 6.7 hectares). Since 2017, the couple has used online sales platform as a new way to expand sales. By presenting planting and wrapping process to customers, the couple is awarded great popularity and profit. (Photo by Zhao Dongshan/Xinhua)

　　Si Junjie (R) and a staff member live stream to sell blueberry in fields in Yiyuan County of Zibo City, east China's Shandong Province, July 5, 2019. Yang Riliang and Si Junjie, a couple from Boshan Village of Shiqiao Township in Zibo City, promotes their blueberry through live streaming. After returning to hometown in 2014, the couple established a blueberry planting base, covering an area over 100 mu (about 6.7 hectares). Since 2017, the couple has used online sales platform as a new way to expand sales. By presenting planting and wrapping process to customers, the couple is awarded great popularity and profit. (Photo by Zhao Dongshan/Xinhua)

　　Yang Riliang (L) and Si Junjie live stream to sell their blueberry in fields in Yiyuan County of Zibo City, east China's Shandong Province, July 5, 2019. Yang Riliang and Si Junjie, a couple from Boshan Village of Shiqiao Township in Zibo City, promotes their blueberry through live streaming. After returning to hometown in 2014, the couple established a blueberry planting base, covering an area over 100 mu (about 6.7 hectares). Since 2017, the couple has used online sales platform as a new way to expand sales. By presenting planting and wrapping process to customers, the couple is awarded great popularity and profit. (Photo by Zhao Dongshan/Xinhua)

　　Si Junjie wraps blueberry during a live streaming in Yiyuan County of Zibo City, east China's Shandong Province, July 5, 2019. Yang Riliang and Si Junjie, a couple from Boshan Village of Shiqiao Township in Zibo City, promotes their blueberry through live streaming. After returning to hometown in 2014, the couple established a blueberry planting base, covering an area over 100 mu (about 6.7 hectares). Since 2017, the couple has used online sales platform as a new way to expand sales. By presenting planting and wrapping process to customers, the couple is awarded great popularity and profit. (Photo by Zhao Dongshan/Xinhua)