本教程首先对 RSS 格式和一些实际的提要示例进行说明。
The tutorial begins with an explanation of the RSS format and some actual feed samples.
对于工作履历、产品说明和客户订单等文档，XML可能是最合适的格式。
For documents such as job resumes, product descriptions, and customer orders, XML documents might be a suitable format.
CWM 格式是包含更多细节的完整模型说明，这些细节比如详细的约束、复杂关系、超级类型和子类型等。
The CWM format is a complete model description with more details, such as detailed constraints, complex relationships, and super and subtypes.
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