用以下表达式定义添加一个新的查询项。
Add a new query item with the following expression definition.
表达式定义了一个参数，稍后，根据所单击的产品，该参数将被第一个报告传递。
Expression defines a parameter which will later be passed by the first report depending on which product you click.
文本消息必须符合的模式是通过初始化文件中的 元素中定义的正则表达式定义的。
The pattern that the text message must correspond to is defined through a regular expression defined through the element in the initialization file.
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