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South Korea's figure skater Kim Yuna lights the main touch during the opening ceremony of the 2018 PyeongChang Winter Olympic Games held at PyeongChang Olympic Stadium, South Korea, Feb. 9, 2018. (Xinhua/Ding Xu)
South Korea's figure skater Kim Yuna lights the main touch during the opening ceremony of the 2018 PyeongChang Winter Olympic Games held at PyeongChang Olympic Stadium, South Korea, Feb. 9, 2018. (Xinhua/Ding Xu)