You must stay the course because you are on behalf of your class.
你必须坚持跑到终点，因为你代表班级。
The base class for all exceptions thrown on behalf of individual data providers.
所有代表各个数据提供程序引发的异常的基类。
The base class for all exceptions thrown on behalf of a data source.
代表数据源引发的所有异常的基类。
The base class for all exceptions thrown on behalf of a data source.
代表数据源引发的所有异常的基类。
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