I must admit I am impressed.

我得承认我很佩服。

《牛津词典》

I must admit I'm completely foxed.

我得承认我一点都不懂。

《牛津词典》

I must admit I like looking feminine.

我得承认我喜欢看上去娇柔些。

《柯林斯英汉双解大词典》

"So the first thing,I must admit, suffers is surgery: elective surgery.Stop."

VOA: standard.2010.06.04

He wasn't that widely read, I must admit, but it shows us how far pro-slavery could ultimately go.

我必须承认,他的作品流传不广,但他向人们展示了亲奴主义者可以走多远

耶鲁公开课 - 美国内战与重建课程节选

I must admit it's very attractive.

我必须承认这一点

耶鲁公开课 - 欧洲文明课程节选

And I must admit that a little bit of their adrenaline rubbed off on me too!

BBC: NEWS | School Report | 'Stressful - but lots of fun'

And I must admit I was expecting it. (Laughter.) Pakistan is an enormous country.

WHITEHOUSE: Town Hall with Students in Mumbai

He is always sincerely apologetic but I must admit he has a good excuse.

FORBES: What Recession? 10 Ways to Keep Your Job and Your Customers in Tough Times