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At least for soccer players, it comes down to a blend of two types of fitness - your base endurance, which comes from longer distance running, and your speed, which comes from sprint-based workouts.

至少对足球运动员来说，这可以归结为两种健身方式的结合——你的基础耐力(来自长距离跑步)和你的速度(来自短跑)。

— Heather O'Reilly 希瑟·奥莱利