It's not absolutely guaranteed that the double element in the request document contains exactly one text node.

不能绝对保证请求文档中的double元素仅包含一个文本节点。

youdao

A robust solution needs to get all the text node children of the double element, concatenate them, and only then convert the result to a double.

一个健壮的解决方案需要获得double元素的所有文本子节点，将它们连接起来，并且仅将结果转换为double。

youdao

In the XML-RPC example, you need to read only one thing in the input: the double element, of which there should be exactly one. To do that, you look for the start of an element with the name double.

在XML - RPC例子中，仅需要读取输入中的一个元素：double元素，该元素应该只有一个。

youdao

Despite these headline negatives, the sector has performed very well in recent months, maintaining an element of price stability while continuing their double-digit dividend yields.

FORBES: Agency REITs Keeping Portfolios Safe During Volatility