结构化查询语言(Structured Query Language, SQL)：一种标准化语言，用于在关系数据库中定义对象及操纵数据。
Structured Query language (SQL) : a standardized language used to define objects and manipulate data in a relational database.
表达式语言——Spring.NET提供了一个表达式语言，可在运行期查询并操纵对象图。
Expression language - Spring.NET provides an Expression language which can be used at runtime to query and manipulate an object graph.
语言的程序，操纵被称为对象的语言。
The language of the programs that are manipulated is called the object language.
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