The answer lies in how SOAP messages are structured, and especially in how extensions are added to the basic SOAP framework.

答案在于SOAP消息的结构，尤其是如何在基本的SOAP框架中添加相应的扩展。

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Despite the simplicity of the basic SOAP wrapper, it offers the potential for unlimited extensions by using an optional component called the header.

尽管基本的SOAP包装非常简单，但是通过使用称为Header的可选组件，它提供了不受限制的扩展能力。

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I'll start by showing you the structure of the message itself. A basic SOAP message consists of an envelope with two main parts: the header and the body.

一个基本的SOAP消息由包含两个主要部分(报头和主体)的封套组成。

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Beauty experts say the basic ingredients of soap and detergents are universal.

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The companies have been fighting in a price war that has pushed margins to almost nothing on the most basic orders, like those for diapers and soap.

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