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Canada's Tristan Walker and Justin Snith train ahead of men's doubles event of luge at 2018 PyeongChang Winter Olympic Games at Olympic Sliding Centre, PyeongChang, South Korea, Feb. 11, 2018. (Xinhua/Lui Siu Wai)
Canada's Tristan Walker and Justin Snith train ahead of men's doubles event of luge at 2018 PyeongChang Winter Olympic Games at Olympic Sliding Centre, PyeongChang, South Korea, Feb. 11, 2018. (Xinhua/Lui Siu Wai)