They were tribal members who came up with an unbreakable code in their complex language that was adopted by American forces in the Pacific during World War II and used to confound the Japanese.

VOA: standard.2010.03.22

But there's a big confound, there's a big problem in studies of those kind of relationships.

但是有一个让人混淆的问题,存在于这种关系的研究中。

耶鲁公开课 - 心理学导论课程节选

You'll see enough things that will confound you, but right now I want to demonstrate a simple paradigm of what it means to know the present and what it means to say this is what the future behavior will be.

你将会发现很多物理问题会让你困扰,而眼下我会举一个例子来阐述,什么叫了解现在,什么又叫预测未来

耶鲁公开课 - 基础物理课程节选