On the first day of school, Socrates told his students, "Today, we'll only learn one thing. That is to swing your arm forward and backward."

在开学的第一天，苏格拉底告诉他的学生：“今天，我们只学一件事情。那就是前后摆动你的手臂。”

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Your hands control the tension in your upper body, while your arm swing works in conjunction with your leg stride to drive you forward.

你的手控制着你上半身的紧张程度，而你的手臂随着步伐的来回摆动则能给你向前的动力。

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A video camera was fixed on an extending arm to swing out and capture the historic moment.

一个固定在延伸臂上的视频录像机记录下了这一历史性的一刻。

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"We have felt for some time that we need to explore the left-arm swing variety to add an extra dimension to our attack and Lonwabo Tsotsobe made a good impression at the recent national camp we held in Kimberley, " said Craig Matthews, the acting convenor of selectors.

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The Concept E-go also boasts exclusive technical innovations such as the " single sided double leg fork" , with 35 mm of inner tube and the aluminium single side swing arm.

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Clubface angle to the tenth of a degree is captured continuously throughout the swing, as is the amount of shoulder turn, club path, arm angles and much more.

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