适当的视图组件将处理模型对象，并返回它作为对客户机的格式化响应。
The appropriate view component processes the model object and returns it as a formatted response to the client.
控制器从模型请求数据并发送给视图完成格式化。
The controller requests data from the model and sends it to the view for formatting.
然后，此格式化程序覆盖就能返回所扩展的模型信息。
The formatter override can then return that extended model information.
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