北京马拉松整个赛道路面平坦，科学均衡，非常有利于参赛者创造佳绩。
The track of Beijing Marathon is flat, scientific and balanced and provides very favorable condition for athletes to make good performance.
北京马拉松整个赛道路面平坦，科学均衡，非常有利于参赛者创造佳绩。
The track of Beijing Marathon is flat, scientific and balanced and provides very favorable condition for athletes to make good performance.
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