服务器将与该商品相关的所有细节，比如价格、特征和图片等，发送给用户。
The server sends all details about that item such as its price, features, image, etc., to the user.
这种方法还适用于你需要从多个服务器取得许多不能被缓存的图片。
This trick can also be immensely effective when you include lots and lots of smaller images from several servers (like gravatars for example) as these are not likely to be cached.
用户可以把动态页面放在ec2上的Web服务器上，而静态内容，如图片、视频和大型的下载包，则交给CloudFront去处理。
The user can run a web server on EC2 delivering dynamic web pages while the static content, like images, video, and large downloads, can be handled via CloudFront.
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