I don't know what your major is; I don't know what you are going to do later so I picked the topics that all of us in physics find fascinating.

我不知道你们的专业是什么,我也不知道你们今后从事什么工作,因此,我会选择一些,物理学界公认的有趣的内容

耶鲁公开课 - 基础物理课程节选

Yeah, so you got an ale which is... I don't know the technical details,

麦芽啤酒很……我不知道专业术语怎么说，

英国的啤酒 - SpeakingMax英语口语达人

That's not as much in my area of specialization, but I do know that

这不太属于我的专业领域，但是我知道

对于未来的技术 - SpeakingMax英语口语达人

but it's hard because I wouldn't know what to choose.

但是，这很难，因为我不知道该选什么专业。

想开精品店 - SpeakingMax英语口语达人