我知道他的观点对他们很有影响力。

I knew his opinion carried a lot of clout with them.

《牛津词典》

我很想知道你对这部电影的看法。

I'm intrigued to know what you thought of the movie.

《牛津词典》

我要是知道点儿什么，我肯定告诉你，可我不知道。你现在说的对我还是新闻呢。

I'd certainly tell you if I knew anything, but I don't. What you're saying is news to me.

《柯林斯英汉双解大词典》

I began with their ideas of Japan and what did they know, because I knew that they knew very little.

我先让他们写了对日本的看法,和了解多少，因为我知道他们的知识很有限。

麻省理工公开课 - 媒体、教育、市场课程节选

which I don't know if you guys are familiar with. It's like a rural state in the middle of America,

我不知道你们对那里熟不熟悉。
这是在美国中部的一个以乡村为主的州。

来自爱荷华 - SpeakingMax英语口语达人

OK. I get the two values in, what do I need to do, well, you sort of know that, right?

好，有了这两个输入值了，我接下来将要做的，你知道对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选