不幸地是，ESB概念定义得非常糟糕。

The ESB concept is, unfortunately, poorly defined.

youdao

换句话说，对应xml语法中的每个概念定义相应的类：元素、属性、实体、文档。

In other words, classes are defined for every concept in the XML syntax: element, attribute, entity, documents.

youdao

当然，贫困只是一个相对的概念，但是通常我们把“绝对”贫困的概念定义为每天的收入不足1.25美元。

Poverty is, of course, a highly relative concept, but the usual definition of "absolute" poverty is an income of less than $1.25 a day.

youdao

And this is because I don't have something I would really like to have, which is data hiding.

也就是数据隐藏,你们会看到关于,这个概念的很多定义，我认为数据隐藏。

麻省理工公开课 - 计算机科学及编程导论课程节选

That's a fairly common-sense idea, but it's important to define it, and I call that the common-sense law.

十分常识性的概念，但定义它非常重要，所以我叫它“常识定律“

麻省理工公开课 - 热力学与动力学课程节选

We can define it in a couple of different ways depending on whether we're talking about sample mean or population mean.

我们有几种不同的方式去定义这个概念,取决于我们指的是,样本均值还是总体均值

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