List more functions here, following the category structure.

根据类别结构，在这儿列出更多的函数。

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Each Category may be assigned to a Category Parent so that you may set up a hierarchy within the Category structure.

每个类别可能会得到一个母类别，这样你可以在类别结构中创建一个层级。

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Each Link Category may be assigned to a Link Category Parent so that you may set up a hierarchy within the Category structure.

每个链接类别可能会分配到一个母链接类别中，这样你可以在链接结构中设置一个层级。

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EBOTs were created as a category when Congress came up with a tiered-market regulatory structure.

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According to the new naming structure, new class designators refer to the specific category that the smartphone product fits into, for example a premium device, or an entry-level device.

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