Right now we are working on a performance increase that will more than triple the speed of testing when working with a large number of tests by removing some inefficiency in the test runner.
The subjects followed the runner at a distance of 30 feet and had to count the number of times he touched his head.
受试人员与逃犯有30英尺的距离，而且需要计算他碰触了多少次他的脑袋。
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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.