可输入常用词语，下拉菜单会提示相关检索词，帮助您定位检索。
When inputting commonly used terms, a drop-down menu will prompt users with related keywords, allowing for more targeted search results.
文档各部分成为xml元素，并当作数据库中的字段处理—可以被定位、被排序、用于检索以及进行其他操作。
The document parts become XML elements and can be treated like fields in a database-able to be located, sorted, used for retrieval, and otherwise manipulated.
XPath提供从HTML文档树定位和检索单个节点或节点集所需的表达式语言。
XPath provides the expression language necessary to locate and retrieve individual nodes or node collections from the HTML document tree.
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