People visit China-Africa Economic and Trade Expo in Changsha

　　Visitors try masks at the booth of the Republic of Ghana during the China-Africa Economic and Trade Expo in Changsha, central China's Hunan Province, June 28, 2019. The exhibition hall of the expo opened to public on Friday and Saturday. (Xinhua/Xue Yuge)

　　A visitor takes photos of exhibits at the booth of the Republic of Mali during the China-Africa Economic and Trade Expo in Changsha, central China's Hunan Province, June 28, 2019. The exhibition hall of the expo opened to public on Friday and Saturday. (Xinhua/Xue Yuge)

　　A staff member from the Republic of Ghana introduces hand drum to visitors during the China-Africa Economic and Trade Expo in Changsha, central China's Hunan Province, June 28, 2019. The exhibition hall of the expo opened to public on Friday and Saturday. (Xinhua/Xue Yuge)

　　A boy plays at the booth of Uganda during the China-Africa Economic and Trade Expo in Changsha, central China's Hunan Province, June 28, 2019. The exhibition hall of the expo opened to public on Friday and Saturday. (Xinhua/Xue Yuge)

　　A visitor takes selfies with a staff member at the booth of Uganda during the China-Africa Economic and Trade Expo in Changsha, central China's Hunan Province, June 28, 2019. The exhibition hall of the expo opened to public on Friday and Saturday. (Xinhua/Xue Yuge)

　　A staff member performs hand drum to visitors at the booth of Guinea during the China-Africa Economic and Trade Expo in Changsha, central China's Hunan Province, June 28, 2019. The exhibition hall of the expo opened to public on Friday and Saturday. (Xinhua/Xue Yuge)