Zheng Wenning (L), a volunteer providing Russian language service, talks with her colleague at the media center of the third China International Import Expo (CIIE) in Shanghai, east China, Nov. 4, 2020. Over 4,000 volunteers perform their CIIE duties at the National Exhibition and Convention Center (Shanghai), with the majority of whom are students from universities in Shanghai. Among them, about one hundred language volunteers covering 19 foreign languages provide help and support to guests from all over the world. (Xinhua/Lu Ye)
