各位好，请教一下
在辞典看到以下例句：
I caught on to what it was the guy was saying.
https://en.oxforddictionaries.com/definition/catch_on
我的想法：
a. I caught on to (something).
b. it was what the guy was saying.

有点太囉嗦了中文翻译就是我终于了解那家伙所说的是怎么一回事了其实就把握一个原则，句子主结构划分好。其余都是后面修饰前面