Scorching temperatures took a toll on athletes competing in the US Open this week. For the first time in the event's history, an extreme heat policy was implemented to help tennis players cope with temperatures nearing 100 degrees Fahrenheit.
원문출처 : https://www.cnn.com/2018/08/30/health/us-open-extreme-heat-sports/index.html
원문출처 : https://www.cnn.com/2018/08/30/health/us-open-extreme-heat-sports/index.html