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

Volunteer center in Cixi City opens science courses for pupils during summer

Source: Xinhua| 2019-07-23 07:50:41|Editor: ZX
Video PlayerClose

CHINA-ZHEJIANG-CHILDREN-SUMMER VACATION (CN)

A pupil tries a scientific instrument under the instruction of a volunteer in Cixi City, east China's Zhejiang Province, July 22, 2019. A volunteer center in Cixi City opened science courses for local pupils to help them learn scientific knowledge and enrich their summer vacation. (Xinhua/Xu Yu)

   Prev 1 2 3 Next  

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011100001382490341