These devices use rope-like material to carry movement from the shoulder to the prosthetic arm.

VOA: special.2009.03.10

And what we want to say of course is, look, just like it's still your body, even if you break your arm.

因此我们可以说，即便你摔断了胳膊，你的肉体也还是原来的那个。

耶鲁公开课 - 死亡课程节选

And those plans and commands descend down this spinal cord to drive the muscles in our arm, to guide the arm where we like it to go.

这些计划和指令沿着脊髓而下,驱动我们胳膊的肌肉，指挥我们的胳膊按意志活动。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

"On station one,we have robot arms. And what happens is the robots have different joints like a human arm -- one at the shoulder,one at the elbow, wrist and then a claw.

VOA: special.2010.07.28

But men like 85-year-old Don Seki, who lost an arm to a burst of machine-gun fire, play-down his own heroism in helping to rescue the "Lost Battalion."

VOA: standard.2009.11.04