当用户使用AI搜索和AI问答，AI检索不到内容时会默认回复“unknown”，或者“您的问题我暂时无法理解。如果您有任何问题或者需要帮助，请尽量提供清晰和具体的问题描述，这样我才能更好地为您提供帮助。”。
您可以通过配置“低文本匹配度默认回复”，引导用户寻求其他解决方案或者添加人工客服进一步咨询。
点击设置->AI配置，选择“低文本匹配度默认回复"，即可进行自定义配置
配置后的效果如下：
菜单
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