我将设定固定的阅读时间。例如，他们可以阅读约半个小时，然后必须做一些运动。

I will set aside regular time for reading. For example, they can read for about thirty minutes, and then they must do some sports.

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服用复合维生素的人同时也用其他的方式来保持健康，例如吃大量的水果蔬菜和做运动，这使得判断保健品是否真正起作用变得困难了。

They also tend to look after their health in other ways, such as eating plenty of fruit andvegetables and doing exercise - making it hard to determine if supplements are responsible.

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例如，他们让受试者谈谈最近做的事情，安排有的人撒谎，有的人说真话，然后跟踪受试者的眼球运动。

For example, they tracked the eye movements of subjects who were lying or telling the truth about things they had recently done.

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