get the gist，gist是指概要、大纲，这个习语是大概理解、知道要点的意思~

I was distracted at the meeting, but I got the gist of it.

在会议上我是分心了，但是基本要点我都听到了。

I get the gist of what they're saying.

我知道他们说的要点/重点。

A:Did you understand what she was saying?

你有听懂她在说什么吗？

B:My French isn't great, but I think I got the gist of it.

我的法语一般般，但是我觉得我大概听懂了。

出处：头条号 @Jonathan陪你学英语