Think of it not as messing so much as digressing.

与其说它离题太远不如说它是一团糟。

Sorry if you feel that I am digressing from the topic.

如果你觉得对不起我离开了话题。

But digressing, there used to be Chicken Porridge in KFC some years back.

但题外话，以前也有在肯德基鸡肉粥几年回来。

Swim for in learning the sea digressing from the subject arresting somewhat?

在学海中游泳离题扣几分？

I'm digressing here, but I can't remember what else happened, except I know how it ended.

我在这儿跑题了，但我记不起发生了其他什么事，除了我知道它是如何结束的之外。

For example, if you ran a test and after the first two steps, you found an issue by digressing from the steps in the test.

例如，如果运行了一个测试并在最开始的两个步骤后发现了一个问题，因而脱离了测试中的步骤。