I absolutely agree with you.

我完全同意你的看法。

Excellent! I agree with you.

太好了！我同意你的看法。

Yeh, I agree with you.

是的，我同意你的看法。

Don't assume he will agree with you.

不要想当然地认为他会同意你的意见。

Under certain circumstance, he will agree with you.

在某种情况下，他会同意你的意见。

Expecting everyone to agree with you is unrealistic.

期望每个人都同意你的观点是不切实际的。

It is unpractical to expect everyone to agree with you all the time.

期望每个人总是同意你的观点是不切实际的。

I quite agree with you.

我非常同意你的观点。

I totally agree with you.

我完全同意你的看法。

I agree with you completely.

我完全同意你的看法。