Marathon is an athletic sport of high load and great intensity over long distances. It is also a high-risk athletic sport which has higher physical demands on participants.

马拉松赛是一项高强度、长距离的竞技运动，也是一项高风险的竞技项目，对参赛者身体条件有较高的要求。

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It's inevitable to be injured in sports activities. However, as a favorite sport at colleges and universities, football makes the proportion of getting athletic injury especially high.

在运动中发生损伤是难以避免的，然而作为高校学生最喜爱的运动之一，足球运动的损伤人数比例尤为突出。

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Although most high schools and colleges have cheerleaders, only 29 state high school athletic associations recognize cheerleading as a sport, and the National Collegiate Athletic Association (NCAA) does not include competitive cheerleading in its list of sponsored sports.

FORBES: Why Pediatricians Want Cheerleading To Be Called A Sport