Participants conduct test on the track during the biathlon international training week at the National Biathlon Center in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
Participants conduct test on the track during the biathlon international training week at the National Biathlon Center in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
A participant conducts test on the track during the biathlon international training week at the National Biathlon Center in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
A participant conducts test on the track during the biathlon international training week at the National Biathlon Center in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
A participant conducts test on the track during the biathlon international training week at the National Biathlon Center in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
Participants conduct test on the track during the biathlon international training week at the National Biathlon Center in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
Staff members walk in the National Biathlon Center during the biathlon international training week in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
Participants conduct test on the track during the biathlon international training week at the National Biathlon Center in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
Participants conduct test on the track during the biathlon international training week at the National Biathlon Center in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
Participants conduct test on the track during the biathlon international training week at the National Biathlon Center in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
Participants conduct test on the track during the biathlon international training week at the National Biathlon Center in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
Participants conduct test on the track during the biathlon international training week at the National Biathlon Center in Zhangjiakou competition zone of the Beijing 2022 Olympic and Paralympic Winter Games, in Zhangjiakou, north China's Hebei Province, Dec. 28, 2021. (Xinhua/Mu Yu)
