footprints , training gym mats. 腳印 , 訓練健身房墊.

Carolyn Drake for TIME
Camp Karolyi: An Enduring Legacy for U.S. Olympic Gymnasts - LightBox http://lightbox.time.com/2012/07/16/camp-karolyi-an-enduring-legacy-for-u-s-olympic-gymnasts/#3

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