By breadth, I mean the features that were beyond the scope of this article, such as abstract classes, interfaces, the iterator interface, reflection, exceptions, and object cloning.

广度指的是超出本文范围的那些特性，比如抽象类、接口、迭代器接口、反射、异常和对象复制。

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Knowledge transmission and learning within contemporary indigenous communities is one critical area of reflection and work that lies along this challenging interface between biological and cultural diversities, while also connecting to the domain of education.

UNESCO: CULTURE