Given an address or a range of addresses, you can group several commands between curly braces, {and}, to have these commands operate only on lines selected by the range.
对于一个地址或一个地址范围，可以在大括号{和}之间对命令进行分组，使这些命令只用于按范围选择的行。
The commands that you execute can cover almost anything from a range of different commands.
您可以执行各种各样不同的命令。
The driver translates the calls into commands its DBMS can use, simplifying the developer's work and making it available for a wide range of data sources.
驱动程序将这些调用转换成DBMS可使用的命令，因而简化了开发人员的工作，使得广泛的数据源都可以使用它。
The driver translates the calls into commands its DBMS can use, simplifying the developer's work and making it available for a wide range of data sources.
驱动程序将这些调用转换成DBMS可使用的命令，因而简化了开发人员的工作，使得广泛的数据源都可以使用它。
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