This principle asserts that the designer of a class and the user of that class share assumptions about the class implementation.

这个原理声称一个类的设计者和这个类的使用者，共同分享关于类的实现的假设。

youdao

In following the Open Closed Principle, I want to be able to write a class or a method and then turn my back on it, comfortable that it does its job and I won't have to go back and change it.

在遵循开闭原则的过程中，我期望能够写出一个类或者方法，在以后我回过头读它的时候，会很舒服地看到它能完成它的工作并且我也不需要再修改它。

youdao

A general principle of test-driven development is that you should test all published interfaces to a class.

测试驱动的开发的总体原则之一就是应测试一个类已发布的所有接口。

youdao

And fairly soon into the conversation I demonstrated some principle that you've probably learned in your physics class having to do with an object at rest remaining at rest unless acted upon by a force.

很快，在交谈中,我就展示了一些原理,可能你们在物理课上学过,要使静止的物体保持静止,必须有外力作用。

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In principle, we could play this with the whole class, but let's single out a particular row of the class so I'm going to come down here and I guess eventually, well I'll grab it in a minute.

理论上,我们可以全班一起做这个博弈,但我要选出特定的一行,我先走下来,我觉得,我很快就能挑到人

耶鲁公开课 - 博弈论课程节选

The court said it overturned the settlement because it violated the fundamental principle behind a class action.

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When you talk about cutting into the mortgage deduction in a way that taxes middle-class Americans, that violates a very fundamental principle that the President has, which is this should not -- in order to preserve low taxes, low tax rates for wealthy Americans, to ask the middle class to pay the price is not going to happen.

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And in real life, many middle-class voters feel the same way as a matter of principle.

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