These are interesting because each exercise is chosen to demonstrate a particular hand motion.

这是很有趣的练习因为这些练习是手指开动的一些精选性练习。

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He made a neat chopping motion with his hand.

他用手做了一个干净利落的砍的动作。

《柯林斯英汉双解大词典》

At a single motion of his hand, the room fell silent.

他手一挥，屋子里便安静了下来。

《牛津词典》

She made each hand as an example to students while she was teaching a class on drawing using free-motion embroidery.

VOA: special.2009.11.04

The downbeat in the music comes with the down motion of the hand.

音乐的重拍,合着手势,下摆

耶鲁公开课 - 聆听音乐课程节选

String players are taught whether it's cellists going this way, downbeat or violas and violinists coming down this way that the downward motion of the hand or the pull across the strong pull across should come with the downbeat; that emphasizes the downbeat.

弦乐手们都是这样教出来的,是不是大提琴手这样的时候或者中提琴手,还有小提琴手们在这里这样拉,当手势冲下,很重的向下的手势时候,是重拍出现的时候,都是在强调重拍的

耶鲁公开课 - 聆听音乐课程节选

By simply making a circular hand motion, users can control the camera's zoom functions.

ENGADGET: Samsung updates MultiView camera lineup with MV900F point-and-shoot for $350, we go hands-on

U.S. video game sector retail sales fell 9% in December from a year, according to market research firm NPD, and the total would have been even lower had it not been for the new Kinect hand- free motion controller for the Microsoft (MSFT) Xbox 360.

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The hand itself has several degrees of motion, and is controlled using the same nerve signals that are used to control a biological hand.

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