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毫无疑问，400米跑是径赛中最困难的项目。它要求运动员必须具备充沛的体力和顽强的意志。每一个400米运动员都有自己的跑步方式，而技巧则在于懂得如何放松以保持开阔。舒展、协调的步子。教练员都希望避免对运动员在早期训练时就形成的跑步方式进行修改和调整，因为这样做不
There is no doubt that the 400-meter run is the most difficult race in track. It requires athletes must have plenty of physical and indomitable will. Every 400-meter athlete has his own way of running, and the trick is to know how to relax to stay open. Stretch, coordination of the pace. Coaches want to avoid modifying or adjusting the way athletes run during early training because doing so