（1）小伙子跑得不错,已经从起跑冲刺进入途中匀速跑.他像一匹马驹昂头急奔：步幅匀称,步频紧凑,蹬动有力,腰肢放松——整个动作显得优美而富有弹性The boy runs well,already began sprinting into uniform runs way ...
（1）小伙子跑得不错,已经从起跑冲刺进入途中匀速跑.他像一匹马驹昂头急奔：步幅匀称,步频紧凑,蹬动有力,腰肢放松——整个动作显得优美而富有弹性The boy runs well,already began sprinting into uniform runs way ...