S3 is primarily geared towards file storage so although it makes a good choice for cheaply hosting images and CSS stylesheets, it's a not a good choice for storing relational or structured data.
S3主要适用于文件存储，虽然它为图片和CSS样式表的低成本存储提供了一个不错的选择，但在存储关系型数据和结构化数据上它不是一个好的选择。
The PHP code used within a template is used exclusively to transform the data into a well-structured XHTML content fragment that is easily styled using CSS.
模板中的PHP代码专门用来将数据转换为结构良好的XHTML内容片段，从而可以使用css轻松地应用样式。
Applying this to the Web space, an HTML file represents data; a CSS stylesheet represents styling of a particularly structured set of data.
将此原则应用到Web空间：HTML文件代表数据；css样式表代表特定结构化数据集的样式。
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