One of the hurdles to getting the hang of namespaces is learning how the scope resolution works.

要熟悉名称空间的使用，其中一个难点就是了解如何进行范围解析。

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The scope resolution operator should sit between the class name and the static property you wish to access.

范围解析操作符应位于类名和希望访问的静态属性之间。

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You can access a static property using the scope resolution operator, which consists of a double colon (: :).

可以使用范围解析操作符来访问静态属性，该操作符由双冒号(：)组成。

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But French Defence Minister Gerard Longuet, speaking on French radio, conceded that ousting Col Gaddafi would be "certainly" beyond the scope of the existing UN resolution, and could require a new Security Council vote.

BBC: Libya: Obama, Cameron and Sarkozy vow Gaddafi must go