在商务谈判中有很多情况下要对别人的观点表示同意或反对，以下是一些常用表达方式：
　
赞同看法
　　1. A valid point.
　　2. I agree completely.
　　3. I agree one hundred percent.
　　4. I agree wholeheartedly.
　　"valid"是‘确实的；有价值的'；"point"为‘重点；观点'。这用语是说对方提出的这一点很有参考价值，值得重视。等于"It's a valid point."，将"It's"省略后，语气更形简洁有力。这句话表示自己完全同意对方的看法，并百分之百地支持；常能发挥鼓励他人发言的作用，可用于正式或非正式的场合。

表达反对
　　1. I'm sorry, but I have to disagree.
　　2. I'm sorry, but I can't agree with that.
　　3. I'm sorry, but I can't support that position / idea.
　　4. I'm sorry, but I can't go along with that.
　　"disagree"的意思是‘不同意；反对'。这句话可用于半正式与正式场合中。请注意这句话所不同意的是‘意见'而非‘个人'，纯粹对事不对人，所以可以很技巧地避免让对方下不了台。用"I'm sorry"开头，尤显客气有礼。

More 同意与反对
　　在会议桌上，面对不同考量的方案与意见时，我们常需表达正面或反面的看法。以下提出两种不同程度表达同意及反对的说法，请比较参考：
　　同意的说法：强烈表达
　　I'm in complete agreement.
　　I quite agree.
　　I couldn't agree more.
　　Exactly!
　　Precisely.
　　同意的说法：和缓表达
　　I agree.
　　You're right there.
　　I think you're right.
　　That's true.
　　That's right.
　　I disagree completely.
　　That's out of the question.
　　On the contrary.
　　Of course not!
　　That's ridiculous.
　　反对的说法：和缓表达
　　I don't agree.
　　That's not how I see it.
　　I wouldn't say that.
　　I don't think it will work.
　　I disagree.