She doesn't seem to have any idea of what I'm talking about.

她对我所说的似乎一点也不懂。

《牛津词典》

I don't have the remotest idea what you're talking about.

你在说什么我一点都不懂。

《牛津词典》

I don't have the least idea of what you're talking about.

我一点儿也不明白你在说什么。

《柯林斯英汉双解大词典》

So I picked her up and I took her to the couch and I just started talking to her about what happened.

VOA: special.2009.12.11

Now,the problem with this is that Papias and these other people didn't really know what they were talking about.

问题是帕皮亚和其他人,根本不知道自己在说什么。

耶鲁公开课 - 新约课程节选

However, your friend might think that what you're talking about is more important than the project that you're discussing.

然而，你的朋友可能觉得你们谈论的内容比项目更为重要。

There is 课堂 - SpeakingMax英语口语达人

We hear a lot of people in Washington talking about politics, talking about what this means in November, talking about the poll numbers for Democrats and Republicans.

WHITEHOUSE: Health Insurance Reform Right Now

Before you deliver a message, whether it is to a large audience or just a few people, think through the strategy of how to make what you talking about a reality, and how you will get people excited about doing that.

FORBES: Mr. President: Speeches Are Not Plans -- or Strategies

What I was talking about -- what has been provided by the work, the positive work that the Speaker of the House and the President did, is a lot of detail about how you could get to significant tax reform and entitlement reform, and the savings that you can glean from that, the deficit reduction you can glean from that.

WHITEHOUSE: Press Briefing