You can see in the Test Component pane how the top element is of type BG.
在测试组件面板中，可以看到顶层元素属于类型BG。
A SOAP message is a complete XML document, with the top element being the envelope element.
SOAP消息是一个完整的XML文档，顶级元素是信封元素。
When an exit address is encountered, the current active function has returned and the top element on the stack is discarded.
在碰到退出函数时，当前的活动函数就会返回，并释放栈顶元素。
The document is traversed from the root by getting the top element, getting its first child (config_node), and finally by individually examining config_node's children.
通过获得顶级元素，然后获得它的第一个子元素(config_node)，最后分别检查config_node的子元素，来从根节点开始遍历文档。
The document is traversed from the root by getting the top element, getting its first child (config_node), and finally by individually examining config_node's children.
通过获得顶级元素，然后获得它的第一个子元素(config_node)，最后分别检查config_node的子元素，来从根节点开始遍历文档。
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