I just a little bit

Actually, I wasn't nervous at all. I just a little bit tired.

实际上，我一点也没有感到紧张，我只是感到有点累。

We had a little conversation which calmed me down a bit, and that was just what I needed.

在我们进行了一次简短的谈话后，我平静了一些，这正是我所需要的。

Now what I want to do is just describe a little bit of how do you measure all this stuff, right?

现在我想做的是描述一下如何测量所有的这些东西，对吧？