然而，心理学的定义是一门有助于我们描绘，预测和控制自身行为的科学。

Yet psychology is defined as a science that helps us describe, predict and control behavior.

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软件架构和设计一直都没有一个明确的定义，因为软件开发作为一门学科，尚未完全理解其中的复杂度和内涵。

Architecture and design in software have resisted firm definitions for a long time because software development as a discipline has not yet fully grasped all their intricacies and implications.

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前面描述了预定义的内核键集，它们应该可以构成典型的替换门的基础。

The predefined kernel keysets described above should form the basis of the typical replace gate.

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So thermodynamics, based on these four laws now, requires an edifice, and it's a very mature science, and it requires that we define things carefully.

热力学是一座，建立在这四条定律上的大厦,它是一门非常成熟的科学，也要求我们在定义东西时非常小心。

麻省理工公开课 - 热力学与动力学课程节选