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Students push a modified bobsleigh with Canadian bobsledder Christine De Bruin during the Bobsleigh Canada Skeleton Push Challenge event at Nathan Phillips Square in Toronto, Canada, Nov. 1, 2017. (Xinhua/Zou Zheng)
Students push a modified bobsleigh with Canadian bobsledder Christine De Bruin during the Bobsleigh Canada Skeleton Push Challenge event at Nathan Phillips Square in Toronto, Canada, Nov. 1, 2017. (Xinhua/Zou Zheng)