We want to understand how limb design determines the energy costs of walking and running.

我们想了解肢体结构是如何决定步行和奔跑时的能量消耗。

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They stopped walking and he almost bumped into them.

他们停下了脚步，这下他几乎撞到他们。

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Recently I've started to do a lot of walking and cycling.

最近我开始进行大量的远足和骑车运动。

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This how the system works in Boston: The jobs available include house cleaning,dog walking and home repair.

VOA: special.2009.02.02

Well, there's a lot of variety. There's different trails for walking and bike riding

嗯，很多呢。有不同的道路供步行和骑车。

激情生活 - SpeakingMax英语口语达人

But I choose to walk, and just walking in the seasons whether it's snowing or raining, or gorgeous sunny fall day.

但是我选择走路，什么季节都是如此,无论是雪天，雨天，亦或是秋高气爽。

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Among the duo's credits: Notting Hill, Fargo, Dead Man Walking and Four Weddings and a Funeral.

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He now runs marathons but got his start walking and increasing intensity little by little.

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He has set records in space walking and has logged more than 687 hours in space.

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