Using the same test-driven development techniques, I created an alternate version of the classifier, which appears in Listing 2.
采用相同的测试驱动开发技术，可以创建该分类器的可替换版本，如清单2所示。
Because we are using it in combination with the hreflang attribute, we imply that the referenced Web page is a translated, alternate version of the current document.
由于我们将该属性与hreflang属性一起使用，因此意味着被引用的网页是当前文档的经过翻译的备选版本。
First, we use the alternate link type to express the relationship between this article and our Spanish version.
首先，我们使用alternate链接类型来表达这篇文章与西班牙语版之间的关系。
The link with rel="alternate" type="text/html" gives the readable version of the site as an alternative representation.
带有 rel="alternate"type="text/html"的link作为替代表示给出了站点的可阅读表示。
The link with rel="alternate" type="text/html" gives the readable version of the site as an alternative representation.
带有 rel="alternate"type="text/html"的link作为替代表示给出了站点的可阅读表示。
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