一个消息代表在Web服务描述语言(WSDL)规范中定义的一个概念；即，它是实际数据对服务和消费者有意义一个容器。

A message represents a concept as defined in the WSDL (Web Services Description Language) specification; that is, it's a container for actual data which has meaning to the service and the consumer.

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实体框架还使开发人员能够直接对在概念级别上定义为公共语言运行时(CLR)对象的数据类型进行编程。

The Entity Framework also enables developers to program directly against the data types defined at the conceptual level as common language runtime (CLR) objects.

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