API的数据类组件提供展现数据平台的数据模型的类型和关系的规范的应用程序无关类。

A data classes component of the API provides canonical, application-independent classes that expose types and relationships of a data model of the data platform.

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伪类的表示方法是在名称前面加一个冒号。伪类与特定元素无关，而是根据文档中发生的情况应用样式。

Designated by a colon preceding the name, pseudo-classes are independent of particular elements and instead look at what's happening within the document.

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table 类的名称无关紧要，因为它是自动生成的，而且实际上程序员看不到它。

The name of the table class is irrelevant because it is generated automatically and is essentially invisible to the programmer.

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