The two countries have not had formal relations since Iran's 1979 Islamic revolution and interaction between the two countries' diplomats has been infrequent.

VOA: standard.2009.06.24

What about this second bond here sigma where we're going to have interaction of 2 p orbitals, is that sigma or pi?

那2p轨道相互作用的第二个键呢,它是，还是π？

麻省理工公开课 - 化学原理课程节选

But I like that fact you can have that interaction and that you know, like,

但是我喜欢这一点，就是你有这样的交流，这样的事，

街头表演的魅力 - SpeakingMax英语口语达人

All right. The other thing I have to teach you is matter-energy interaction so that we can see how the Balmer series validates the Bohr model.

好的，我要教你们的里一个知识点是,物质能量的相互作用，我们可以见证,巴尔末线系是怎样证实波尔模型的。

麻省理工公开课 - 固态化学导论课程节选

And against that, we could have the pessimists who say, "The negative side especially once we throw in the negative interaction effects, the negative side is so great that " that it would be better never to have been born at all."

而与此相反，可能有悲观主义者说，“消极的方面,特别是我们一旦把负面相互影响考虑进去，消极的方面就会变得,让我们觉得还是压根别出生的好“

耶鲁公开课 - 死亡课程节选

it's easy to have like, pretty close interaction with professors if you wanted to.

只要你想，很容易就可以和教授有很密切的互动。

要考入大学 - SpeakingMax英语口语达人

so actually undergraduates don’t have a lot of interaction with him.

所以他跟本科生没有太多的交流。

耶鲁的著名人士 - SpeakingMax英语口语达人

I mean, you have a lot more interaction.

我的意思是，跟人的互动更多。

快乐的校园生活 - SpeakingMax英语口语达人