I know damn all about computers. 我对计算机一窍不通。
It's a terrible situation and the worst thing is that you can do damn all about it.
These kids do damn all in the way of physical activity.
I had damn all in the way of experience.
I was being asked to speak about a subject that I knew damn all about.
I know what Ethan's promises are worth - damn all!
See also: damn adverb