"It captures the desired properties of these two systems," says Leung.

“它可以通过两套系统获取所需的性能，”梁教授介绍说。

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The story is not so simple, he says, because these two systems are connected via the midbrain dopamine neurons.

事实并非这么简单，他说，因为这两个系统存在通过中脑多巴胺神经元的连接。

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The analysis and discussions of researchers are based on the formation, vicissitude and impact of these two systems.

研究者的分析与讨论也基于这两种制度的形成、变迁、影响来展开。然而。

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These two systems which are shown in the core of this diagram really are responsible for regulating and exchanging information between the other organ systems.

在这张图的中心画的就是这两个系统,它们的功能是调节其他系统,并与之交换信息

耶鲁公开课 - 生物医学工程探索课程节选

Over the past two centuries, and even more over the past generation, the developmental timing of these two systems has changed.

WSJ: What's Wrong With the Teenage Mind?

In contemporary life, the relationship between these two systems has changed dramatically.

WSJ: What's Wrong With the Teenage Mind?

The debate today is not between big government and free market capitalism but rather about how we should structure our mixture of these two systems.

CNN: Campaign 2012: The phony war of markets vs. government