People walk past the entrance of the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Zou Yu)

An exhibitor arranges African seafood products at the China-Africa Economic and Trade Cooperation Promotion Innovation Demonstration Park (Hunan Gaoqiao Grand Market) in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Chen Sihan)

A visitor poses for a photo with a wig on her head during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Sun Ruibo)

(资料图片仅供参考)

Visitors (L) shop various products at the Changsha International Convention and Exhibition Center during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Chen Zhenhai)

Visitors take photos in front of the Changsha International Convention and Exhibition Center during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Chen Zhenhai)

People visit the China-Africa Women"s Innovation and Entrepreneurship Exhibition at the Changsha International Convention and Exhibition Center during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Chen Yehua)

Actors perform African dance during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Sun Ruibo)

Visitors shop for African clothes during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Zou Yu)

Audience take photos of a performance at the Changsha International Convention and Exhibition Center during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Chen Yehua)

People visit the China-Africa Achievement Exhibition on High-Level Building of the Belt and Road Initiative during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Sun Ruibo)

People visit the Changsha International Convention and Exhibition Center during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Chen Yehua)

Models present creations during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Sun Ruibo)

People enter Changsha International Convention and Exhibition Center during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Chen Yehua)

A girl interacts with a service robot during the third China-Africa Economic and Trade Expo in Changsha, central China"s Hunan Province, July 1, 2023. The third China-Africa Economic and Trade Expo is held in Changsha from June 29 to July 2. (Xinhua/Sun Ruibo)