One issue with the XSL stylesheet process is that it is very simple but also quite limited, both in your options for generating the VXML file, and, ultimately, in the VXML generated.

XSL 样式表方法的一个问题是，虽然它非常简单，但是功能非常有限，在生成 VXML 文件时可用的选项和生成的 VXML 两方面都受限制。

youdao

In one test, documents were left in the Inbox, while in the second test, we limited the number of documents in the Inbox to 25 percent of the total document count in the mail file.

对于其中的一个测试，文档保留在收件箱中，同时在第二个测试中，我们限制收件箱中文档的数量是邮件文件文档总数的25%。

youdao

This approach has many problems: the file format is arbitrary, only one set of keywords is saved, objects are not even on the horizon, data values are limited to one line of text, and so on.

这种方法有很多问题：文件格式是任意的，只保存一个关键字集合，根本没有对象、数据值限制到一行文本等等。

youdao

We could just dump it all into one giant Zip file, but we know for a fact that has limited impact.

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