在大多数个案中，委托设计软件程序的人并不真正知道他们需要什么，也无法将他们所知道的完全告知我们。
In most cases the people who commission the building of a software system do not know exactly what they want and are unable to tell us all that they know.
在大多数个案中，委托设计软件程序的人并不真正知道他们需要什么，也无法将他们所知道的完全告知我们。
In most cases the people who commission the building of a software system do not know exactly what they want and are unable to tell us all that they know.
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