我们看一下修改后的样例模型。

Let's have a look at the sample model after the modifications.

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把追踪应用到样例模型中。

Applying the Tracing aspect to the sample model.

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图2是一个样例模型，它显示了上下文中的公用体结构。

Figure 2 shows an example model demonstrating common structures in context. The code corresponding to the class interface for AddressModelClass is shown in Listing 1.

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