When Zhang Xiaotao set off last weekend on a 100-kilometer (62-mile) ultra-marathon through the jagged mountains of northwestern China, he didn't know he was embarking on one of the deadliest journeys in the country's sporting history.


원문출처 : https://www.cnn.com/2021/05/28/china/ultramarathon-safety-intl-hnk-dst/index.html