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Parkrun is not a race but a time trial: Your only competitor is the clock.

“公园跑”不是速度竞赛，而是计时赛：你唯一的竞争对手是时钟。

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The definition of pirates as enemies of the human race is reaffirmed in British and American trial law and in numerous treaties.

英美两国的审判法，以及无数的条约，都重申了这一定义，即海盗是人类的公敌。

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The race also acted as a trial race for selection for the Kenyan team for the London Games and Kipsang and Keitany were impressive winners on both counts.

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Stretching the analogy (perhaps to the breaking point): On a recent weekend I competed in a bicycle time-trial race of 3.35 miles, straight up the side of a mountain.

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He went on to emulate Oreiller's golden hat-trick, at the Grenoble Winter Olympics in 1968, and his pursuit of speed and glory once saw him complete a trial race on one leg, legend has it, having broken the other one en route to the finish line.

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