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For example, to add a protected field of type Publisher to the ElectronicMedia class.
例如,添加一个类型Publisher的protecte d域到electronicmedia类。
youdao
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For example, to add a protected field of type Publisher to the ElectronicMedia class.
例如,添加一个类型Publisher的protecte d域到electronicmedia类。
youdao