know that this topic

I know that this is a big topic, and it can mean a lot of different things to different people.

我知道，这是个很大的话题，对于不同的人来说这意味着许多不同的事情。

Yes, we know that is not what comes to mind when most people think of their performance appraisal process, which goes to show how far afield we've gotten on this topic.

是的，当大多数人提到自己业绩考核程序的时候，人们并不在乎，由此可见，在这个话题是多么冷僻。

We know from experience that if this Angle is too small that the ladder will slide, and so I want to make the topic today "What should that Angle be so that it does not slide?"

从经验中我们，知道若这角过小，梯子就会滑下来，所以今天的主题是，“这个角度多大时，它不会滑下来。”