These are the same hosts that you configured CloudFront to respond to.

这些都是您在 CloudFront 上配置的相同主机。

youdao

If this is the first request, the content is downloaded from S3 and cached on CloudFront then delivered to the user.

如果是第一次请求该内容，CloudFront会从S3下载内容并作缓存，然后分发给用户。

youdao

The user may also specify a CNAME, and the delivered content will appear as coming from the CNAME domain instead of the CloudFront one.

用户还可以指定一个 CNAME，CloudFront会使分发内容看上去来自该CNAME域。

youdao

Assuming costs are similar to Amazon Cloudfront and compensating for the approximate profit margin of Amazon in their cloud business, it is possible to get a close approximation.

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Examples of the services offered by Amazon Web Services are Amazon Elastic Compute Cloud (Amazon EC2), Amazon Simple Storage Service (Amazon S3), Amazon SimpleDB, Amazon Simple Queue Service (Amazon SQS), Amazon Flexible Payments Service (Amazon FPS), Amazon Mechanical Turk and Amazon CloudFront.

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