The only global declaration is for the root of the document (the root of a document has to be a global declaration, since the root has no parent).

唯一的全局声明是用于文档的根的(文档的根必须是全局声明，因为根没有父元素)。

youdao

For a global declaration, you need to specify its type (that is, class name) and the identifier you want to use to refer to it (that is, variable name).

对于global声明，需要指定它的类型(即类名)和想要用于引用它的标识符(即变量名)。

youdao

The global declaration lets the rules engine know that an object should be accessible from within your rules but that it should not be part of the knowledge used to evaluate the rules' conditions.

global声明让规则引擎知道，某个对象应该可以从规则中访问，但该对象不应是用于对规则条件求值的知识的一部分。

youdao

The declaration calls recovery so far from the global economic crisis uneven and fragile, with unemployment at unacceptable levels in many countries.

VOA: standard.2010.06.27

One resolution was approved a declaration calling for concerted global action on climate change ahead of a major United Nations conference on the subject scheduled for December in Copenhagen.

VOA: standard.2009.10.17

BMW, for example, has successfully fused its global slogan of the "ultimate driving machine" with a Chinese-style declaration of ambition.

WSJ: What Chinese Consumers Want