There are only two approaches I know of: guess and hope you're right, or deliver the software in small bits and make adjustments as you get a better understanding of what the customer really needs.
我只知道两种方法：猜测并指望猜对，或者一点一点地交付软件并在更好地理解了客户的真正需要时对软件进行调整。
Your very belief and hope strengthen the self and you will know only birth and death.
正是你的信仰和希望加强了自我，你只知道生与死。
Your very belief and hope strengthen the self and you will know only birth and death.
正是你的信仰和希望加强了自我，你只知道生与死。
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