After having to return one of his Olympic gold medals, you could have forgiven Usain Bolt for going back on his promise to retire after this summer's World Athletics Championships.
원문출처 : http://www.cnn.com/2017/02/15/sport/usain-bolt-olympics-world-athletics-championships/index.html
원문출처 : http://www.cnn.com/2017/02/15/sport/usain-bolt-olympics-world-athletics-championships/index.html