Remember, the supertype relation is reflexive.

记住超类型的关系是反身的。

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The type from which a subtype inherits attributes is known as its supertype.

子类型所继承的属性来自哪个类型，该类型就被认为是这个子类型的超类型。

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Local handles have the class Local and can also be stored in variables declared with the supertype handle.

类Local产生的本地句柄同样可以被存储在父类Handle声明的句柄里。

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