中文字幕无码久久人妻_中国无码a一级刺激片_国产综合色产在线观看_色多黄片资源2020

Community in China's Hebei opens science, technology courses for students during summer vacation

Source: Xinhua| 2019-07-25 22:31:11|Editor: Li Xia
Video PlayerClose

CHINA-CHENGDE-ROBOTS-SUMMER VACATION (CN)

Students control drones at Zhixiang Robot Makers' Center of Yong'an street community in Chengde City, north China's Hebei Province, July 25, 2019. The community opened science and technology courses for local students during the summer vacation. (Xinhua/Wang Xiao)

   Prev 1 2 3 4 Next  

KEY WORDS:
YOU MAY LIKE
EXPLORE XINHUANET
010020070750000000000000011100001382579791