Volunteers sign on the board of signatures during the 1000-day countdown celebrations of the Beijing 2022 Olympic Winter Games held in Chongli of Zhangjiakou City, north China's Hebei Province, May 11, 2019. (Xinhua/Yang Shiyao)
1000-day countdown celebrations of Beijing 2022 Olympic Winter Games held in Zhangjiakou City, N China's Hebei
Source: Xinhua| 2019-05-11 12:38:44|Editor: Shi Yinglun
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