阅读是一个积极的精神活动过程。

Reading is an active mental process.

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生活中最重要的习之一就是要经常为本人补充积极的精神粮食。

One of the most important habits in life is to feed your mind with positive mental food.

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为什么吃冰激凌可以对大脑产生积极的精神影响，对此，之前已经有一些科学研究了。

There has already been some scientific research into why ice cream may have a positive mental effect on those who eat it.

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