一般来说，进行这种季节性往返迁移是为了寻找在一个地区无法全年获得的资源。

Generally, the reason for such seasonal back-and-forth movement is to seek resources that aren't available within a single area year-round.

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除了在收获季节，当自我保护需要暂时休战时，帕尔比部落总是进行私下或公开的战争。

Except at harvest-time, when self-preservation requires a temporary truce, the Pathan tribes are always engaged in private or public war.

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为了在寒冷的季节保持你的速度，你需要每周进行一次法特莱克跑。

To maintain your speed during the cold-weather months, do one fartlek workout every week.

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