提高速度的其它好处是提高心血管能力和肌肉力量，这是所有跑步者梦寐以求的，无论是否参加比赛。
Cardiovascular improvement and muscular power are additional benefits of increased speed that every runner can appreciate, whether racing or not.
提高速度的其它好处是提高心血管能力和肌肉力量，这是所有跑步者梦寐以求的，无论是否参加比赛。
Cardiovascular improvement and muscular power are additional benefits of increased speed that every runner can appreciate, whether racing or not.
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