Dynamic sites tend to be slower because the server computes the page for every request.

动态站点往往比较慢，因为服务器要为每次请求计算页面。

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It provides dynamic interaction between the user's browser and the Web server, without having to refresh a complete page each time.

它提供了用户浏览器和网络服务器之间的动态交流方式，而不用每次都刷新一个完整的页面。

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The scripts would display, hide, move, create, and destroy document objects to create dynamic effects, but any time more data was needed from the server, the page would be replaced with a new one.

这些脚本将显示、隐藏、移动、创建和销毁文档对象以便实现动态效果，但是一旦需要从服务器获取更多数据，原页面就被新页面取代。

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