Hi Tdol,
Thanks for your reply. Sorry for my previous email. I might explained it imprecisely.
Let say, I want to refuse other opinion, probably I would say:
"
OK, I don't agree with you. I don't mean to teach you, but in my opinion..."
Actually, I'd like to find a such idiom for the above purpose.
I searched in the idiom references in this site, I found this idiom seem to be having similar meaning:
Teach your grandmother to suck eggs
but the words look not very suit enough if I want to use it in formal sentences/situations like for example in a meeting. I just think if there is an idiom to achieve the same meaning sense.
