Multiply that already large number over the number of miles a runner covers each week, month or year and it is easy to see why running shoes are the most important piece of running equipment.

把这个大基数再乘上每周、每月和每年走过的路程，就清楚地知道跑步是多么重要的一个跑步装备。

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Theintegrated test runner makes it easy to work in a TDD mode.

集成的测试运行器(test runner)使得在TDD模式下工作辨得简单。

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Every now and then I'll see a runner doing something so crazy or ridiculously hard during a run that it makes me think, "Wow, my run is easy compared to that!"

我常常能天到，有些跑步者在途中做着疯狂的或是可以说是可笑的自找苦吃的事情。这让我意识到，“噢，与这些人相比，我的跑步是不是太安逸了呀。”

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Being the front-runner is not easy and the race, which suddenly seems to have begun, is far from decided.

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