通过创建新的链接关系，可以扩展link元素所能表达的联系类型。

By creating new link relations, you can extend the types of relationships that the link element is capable of expressing.

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在此情况下，有两个必需参数：类型和值，它们表示联系类型和联系人地址。

In this case, there are two required parameters, type and value, which represent contact type and contact address.

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如果不先讲民间故事，我们就不能讲童话因为这两种类型的故事之间有很强的联系。

Now we can't really talk about fairy tales without first talking about folktales because there's a strong connection between these two genres, these two types of stories.

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