agree on,agree with,agree to意思有什么不同?

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Agree的用法
agree后面接介词法比较复杂，常见用法有：
(1) 涉及讨论的题目用about。
They never agree about politics. 关于政治问题，他们总是意见不一致。
(2)要确定一样事情用on。
Can we agree on a date for the next meeting? 我们能不能为下次会议确定一个时间？
(3)涉及一件建议或计划用to。
He’s agreed to our suggestion about the holiday. 他已经同意我们关于假日的计划了。
(4)涉及意思、想法、分析、解释以及涉及人的时候用with。
They might not agree with his opinions. 他们可能不同意他御穗的意见。
(5)agree后可接动词不定式或宾语从句。
We agree to leave at once. 我们同意马上离开。

agree一般常用口语用法
(1)I can't argue with you about that.
我无法与您争辩那件事。
(2)You can say that again.
您说的对极了。
(3)You took the words right out of my mouth.
您已说出我心里的话。
(4)I was about to say the same thing.
我正想提出同样看法。
(5)I couldn't agree with you more.
我晌拆纳极表同意您的看法。
注意
上列类似用语"I couldn't agree with you more."，按字面翻译为「我无法宴没再更加同意您了」，实则表「我对您极表同意」。注意这是固定句型，助动词必须用couldn't，而不可用can't。

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agree with sb. “同意某人”，也就是“同意某人的观点”
agree to do sth.“同意做某事”
agree on 同意（尘碰某个协议）

agree to(a plan)后一般加计划,建议之类的词agree on后一般指就某事达消销成一致
agree with后拿兄游一般接sb.表示同意某人(也就是同意某人所说的话agree with what sb said)agree to do sth 是表示同意去某事

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agree on+doing sth.
agree with sb.
agree to+某个计划

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