She longed to break in on their conversation but didn't want to appear rude.

她很想打断他们的谈话，但又不愿显得粗鲁。

《牛津词典》

He broke in on their conversation.

他突然插话，打断了他们的谈话。

youdao

Let's listen in on their conversation.

我们一起来听他们的对话。

youdao

And as I have spent time with students on campus, especially in that program, I realize that there's very much a conversation going on about their experiences in the Outdoors.

我一直和学生们打交道，尤其是在这个项目中，我发现,关于户外活动经历这个话题,他们都有很多话要说。

普林斯顿公开课 - 人性课程节选

In July 2010, she confronted Walker about the abuse and recorded their conversation on an iPhone in her pocket.

BBC: Essex

For those couples who are too inhibited to get this conversation started on their own, a trip to a marriage and family therapist should be a priority.

CNN: Why you should talk about sex before marriage

Speakers today need to forget the rules they learned in public speaking classes of the last century, or in debate classes, and focus instead on having a conversation with their audiences.

FORBES: Why You Need to Change Your Public Speaking Style