translation.en: On the right side, two months after we fit him with his targeted reinnervation prosthesis -- which, by the way, is the same physical arm, just programmed a little different -- you can see that he's much faster and much smoother as he moves these little blocks.
translation.zh: 在右边 是装了定向神经移植假臂后的两个月－ 这是同一个胳膊 只是操控系统不一样了－ 可以看出来他移动小块