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。

youdao

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。

youdao

But if you just look at the musical career that I've had and in 10 years what I've done, I only hope that, you know, within the next 10 years as an actor, I'll be able to obtain a great amount of success and awards for it.

NPR: 'In The Mix' Marks Usher's Film Debut

So I support Mr. Delahunt's motion, and I hope that in the interest of fairness -- because you know this proceeding must not only be fair but must be seen to be fair.

CNN: Transcript: Judiciary Committee impeachment hearing