A volunteer (R) offers help to journalists at the Media Working Area of the Media Center of the FOCAC 2018 Beijing Summit at the Beijing Jianguo International Convention Center of Beijing International Hotel in Beijing, capital of China, Aug. 29, 2018. The media center of the Forum on China-Africa Cooperation (FOCAC) started trial operation on Wednesday. The summit is scheduled for September 3 to 4 in Beijing. (Xinhua/Zhang Chenlin)