Right now I'm reviewing this answer and I don't know what to do:  
https://superuser.com/a/792377/180465  
(Oh sorry that post is now deleted. Anyway, my question still exists...)

The problem is - it's written in another language (but with english letters) and it's impossible to understand what's written there.  
So it can be:  

 - A real answer, but in another language (I must leave a comment or edit to make it english)
 - Spam (add a spam flag)
 - Not answer (mark as not-answer) 

etc.

So, how to deal with such questions/answers? How to flag these questions?  
(P.S. currently I've left a comment for him to write in english and downvoted)