但是这个团队在获得真正的增强视觉前还面临着许多挑战。
But the group faces a number of challenges before achieving true augmented eye vision.
一个例子，一个视觉丰富，娱乐为主的网站很少或根本没有涉及的挑战。
An example of a visually rich, entertainment-oriented site with little or no challenge involved.
“我们试图判定移动物体的准确位置时，对视觉系统形成的挑战很大，”惠特尼说。
"The visual system faces a big challenge when trying to code the locations of objects so that we can perceive them," Whitney said.
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