Yes, I quite agree with you about that.(对，关于此问题，我与你意见相同。)
You are quite right here. I have no objection.(这次你非常正确，我没别的意见。)
I'm with you there. That's a fine idea. (我支持你，这个主意不错。)
There is no doubt about it. I think this one will do.(没什么可怀疑的，我认为就这样。)
I rather doubt that.(我非常怀疑。)
I beg differ with you.(请允许我表示异议。)
I don't quite agree with you. I'm against it. (我不十分同意你的意见，我反对。)
Many people have different ideas. (许多人有不同的想法。)
That's where I disagree with you.(这就是我不同意你的地方。)
My own view exactly.(这正好是我的观点。)
I don't think it's very practical.(我不认为这很实际。)
W:I weigh 180 pounds now. I need some new clothes.
M: Maybe you should go on a diet.
W: I'm here for my 12 o'clock appointment with Prof. Li.
M: Why don't you have a seat for a moment?
W: Oh, yes. Thank you.