// 测试用例（可直接运行验证）
Mayor Zohran Mamdani, a Democrat, played down the fracas earlier this week as a “snowball fight that got out of hand” and suggested he did not think criminal charges were warranted.，推荐阅读51吃瓜获取更多信息
theguardian.com，这一点在谷歌浏览器【最新下载地址】中也有详细论述
Jasmine Sandharand
Making freshness obvious requires explicit signals that AI models can easily detect. The most straightforward approach is including "Last updated: [Date]" at the top of articles, making it immediately clear that the content reflects current information. This simple addition can significantly impact whether AI models view your content as relevant for queries about current state or recent developments.