as I'm concerned,...
As i see it,...
请求重复
I'm afraid I didn't quite catch you.
I'm afraid I'm not quite clear about...
Sorry, I can't follow you.
Could you repeat the question, please?
完全同意某一观点
I couldn't agree more.
My own view is precisely the same.
That's exactly what I'm thinking about.
I'm with you on that.
有礼貌地表示不同意某种观点
I'm not sure.
Well, that depends.
