戴维斯以49.3秒这一新的奥运会记录在400米跨栏赛跑中夺冠。
Davis won the 400 metre hurdles in a new Olympic time of 49.3 sec.
他赢了400公尺的跨栏赛跑。
最终，刘翔在百米跨栏赛跑中成功卫冕冠军。
In the end, Liuxiang succeeded in winning the first place at the 100-metre hurdle race.
刘翔是110米跨栏赛跑的世界纪录保持者。
首先是简单的步行，舒展关节，然后做几个100米跨栏，以增加赛跑时节奏的平稳。
Begin with easy jogging. Add in a few light stretches, and then do several 100-meter strides, accelerating smoothly to race pace.
首先是简单的步行，舒展关节，然后做几个100米跨栏，以增加赛跑时节奏的平稳。
Begin with easy jogging. Add in a few light stretches, and then do several 100-meter strides, accelerating smoothly to race pace.
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