This sounds interesting, but I don't understand. If it's not too much trouble, could you simplify and rephrase this?
I don't understand your reply, or the comment you're replying to -- if it's not too much trouble, could you rephrase this?
This sounds interesting, but I don't understand. If it's not too much trouble, could you simplify and rephrase this?
I don't understand your reply, or the comment you're replying to -- if it's not too much trouble, could you rephrase this?