我可以去开发一个HTML 5应用程序，但是Web程序并不能利用设备的所有功能，客户也会要求原生应用而非web应用程序。

I could go and build an HTML5 application, but a web app doesn't target all the features of a device and customers are asking about native applications, not web applications.

youdao

如果对方给出的开发范围，资源和开发期间是你不能完成的，那么你应该说：“基于现在的团队和资源，我可以在比要求期限晚4周实现你要求的所有功能。”

If you're given an impossible combination of feature set, resources, and schedule, say, "I can deliver the whole feature set with my current team four weeks later than you want it."

youdao

需求定义：在这第一个步骤中，您有“翻译”的要求和客户要求的所有功能执行。

Requirements Definition: in this first step you have to "translate" all customer requests in requirements and features to implement.

youdao