A fundamental design precept is that a class should be part of a domain package only if it exists to fulfill the goals of that domain package.

一个基本的设计规则就是，一个类只要存在并去完成一个域包的目标，那么它就应该是该域包的一部分。

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Both of these actions reflect a fundamental precept of voluntary disclosure.

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"Know your numbers" is a fundamental precept of business.

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It is a fundamental precept of medicine -- one I hammer home with undergraduates (future patients) and medical students (future doctors): Patients with severe abnormalities stand to gain more from intervention than patients with mild ones.

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