This expression specifies a path from the root element to our anchor.

这个表达式指定了从根元素到锚的路径。

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Expression — Only examines tree content (element values) returning the result of the expression.

表达式——仅检查返回表达式结果的树内容(元素值)。

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Besides simplifying element nesting, compact expression also provides a way to reference and reuse policy expressions.

除了简化元素嵌入，紧凑表达式也提供一种引用和重用策略表达式的方法。

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Marketing is the other important brand expression element.

FORBES: Gen Y Secret Is Invisible!

The Pan African Conference on Access to Information and Highway Africa Conference offer an ideal opportunity to discuss the role of professional capacity building and supporting institutions that underpins freedom of expression, pluralism and development as an important element of media development.

UNESCO: Communication and Information