但是，当您从一种操作系统转换到另一种(可能是因为业务方向发生变化，技术增强，也可能是为了节约成本)，完成转换会非常困难。
But when you need to switch from one operating system to another-be it because of a change in business direction, technology enhancements, or cost savings-making the switch can be tough.
应用程序是针对某一种操作系统编写的。
The applications are programmed for a specific operating system.
在我略带几分偏见的观点来看，我想从一种操作系统切换到另一个操作系统在心理上的的难度远远超过操作上的难度。
From my somewhat biased opinion, I think switching from one operating system to another is more difficult in the mind than it is in practice.
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