Photo taken on Nov. 6, 2019 shows participants of the Ceremony for Certification of Beijing 2022 Sustainability Management System in Beijing, capital of China. (Xinhua/Zhang Chenlin)
2019-11-06
Photo taken on Nov. 6, 2019 shows participants of the Ceremony for Certification of Beijing 2022 Sustainability Management System in Beijing, capital of China. (Xinhua/Zhang Chenlin)
Xinhua