A CriteriaQuery is constructed at run time as a tree of strongly typed query expressions whose use the article has illustrated with a series of code examples.

CriteriaQuery在运行时被构建为一个强类型查询表达式树，本文通过一系列例子展示了它的用法。

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Regular expressions provide much richer pattern matching across strings of text, but are as easy to use as XPath when traversing a data structure such as an XML tree.

正则表达式提供了跨文本的字符串的更丰富的模式匹配，但在遍历诸如xml树这样的数据结构时，它和XPath一样易于使用。

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He has a great diagram there showing the expression tree representation of a few lambda expressions.

他在那篇文章里用了非常好的图表来表现说明一些Lambda树的表达式树表示形式。

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