这可以用于手机外置键盘，或者用来控制一个灵活的手腕带形的附件。
This could be applied to the outside of a curved phone in place of a keyboard, or used to control a device in the form of a flexible wrist-band.
幼年黑猩猩(上图)具有灵活的手腕，能挂在树枝上晃荡；而幼年大猩猩(下图)手腕向下且位置固定。
A young chimpanzee (left) has flexible wrists for swinging in trees, while a young gorilla (right) has downward facing wrists that are fixed in place.
“我们的手腕可以像鞭子一样灵活移动，它可以在投掷时起到加速作用，”他解释说。
"We have a wrist that can move like a whip, that can accelerate through throwing," he explains.
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