Although hurdling is a sport that purely requires running and jumping, it's important to be athletic enough to do other things.

尽管跨栏只是纯粹要求跑步和跳跃的运动，但是运动员进行其它种类的训练还是很重要。

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State schools do not play enough competitive sport at a high level, it has been warned.

BBC: Magazine

The NFL has been under fire of late as hundreds of former players and their families are currently suing the league for alleged negligence, claiming that it didn't do enough to mitigate the risks despite what many say is an inherently dangerous sport.

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And, as Whitehead points out, it would have been simple enough to do, since Olympic ticketing does not get into complex dynamic pricing models that many pro sport teams do these days.

FORBES: The Real Reason Behind The London Olympics Ticket Fiasco