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Children participate in a tug-of-war game at an indoor skiing court in Luquan District of Shijiazhuang, capital of north China's Hebei Province, July 5, 2019. (Photo by Liang Zidong/Xinhua)
Children participate in a tug-of-war game at an indoor skiing court in Luquan District of Shijiazhuang, capital of north China's Hebei Province, July 5, 2019. (Photo by Liang Zidong/Xinhua)