医生们一致认为，看电脑屏幕跟看印刷材料不一样。

Doctors agree that looking at an electronic screen is different from looking at printed material.

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测试过程中，研究人员让孩子们看电脑屏幕上蓝色、黄色圆点动画，然后让他们猜那种颜色的比较多。

In this test kids watched groups of blue and yellow dots flash on a computer screen, and had to guess which color was more numerous.

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假如你一天花三个小时以上的时间看电脑或电子设备终端，你就很可能有医生们所说的“电脑视觉综合症”。

If you spend more than three hours a day in front of a computer or electronic terminal you probably have some level of what physicians are calling "Computer Vision Syndrome."

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Obviously, it is a little old, but it is funny to see what people thought about computers in 1969.

虽然有点古老，但是现在去看,1969年人们所认识的电脑，还是很有趣的。

哈佛公开课 - 计算机科学课程节选

To the monkeys we show them the spots, to us, we will put up keys on the key board.

用猴子做试验的时候，我们给它们看那些点，我们给它们看那些点，我们是用电脑的键盘来做。

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And today, if you look at the cell phone and the PDA and the PC and notebooks, desktops, there's a pretty clear distinction among those various product categories.

今天，如果看手机,掌上电脑，个人电脑，笔记本电脑，和台式电脑，就会发现很明显的差别,存在于不同的产品之间。

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