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。

youdao

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。

youdao

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。

youdao