同意某人英文怎么说

"Agree with someone" 表示同意某人的观点或意见。这是一个英语习惯用法。

例句：

I completely agree with you. 我完全同意你的观点。
I agree with her assessment. 我同意她的评估。
He agrees with his friend on this issue. 他在这个问题上同意他的朋友。

请注意，还有其他表示同意的词汇和短语，例如：

concur with someone
endorse someone's opinion
be in accord with someone