The wear on all three, however, indicates an identical supination of the left heel, ruling out multiple owners.

这三双鞋都显示出，左脚跟的明显外翻，它们属于同一个人。

Next, very often we have a electrical motor here that operates wrist rotation, supination or pronation.

然后，我们这里经常有一个电机，它可以控制手腕的旋转、旋后或旋前。

The pivot joint between your radius and ulna allow you to rotate your palm forward or anteriorly in a motion called supination, and turning it backward or posteriorly is called pronation.

桡骨和尺骨之间的枢轴关节允许你在一个叫做旋后的动作中向前或向前旋转手掌，向后或向后旋转叫做内旋。