The blogging phenomenon is possible because individuals can create Websites with the World Wide Web prefix, www, that can be seen by anyonewith Internet access.
正是由于人们可以建立有着万维网前缀www，任何上网之人都能访问的互联网站，博客现象才有可能出现。
To access namespaced elements in XPath, you must define a prefix for their namespace.
要访问XPath中带名称空间的元素，必须为它们的名称空间定义一个前缀。
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