B: Hmm, I didn't realize that.

唔，我没有意识到。

youdao

I didn't realize that being a father would be so difficult.

我不知道做一个父亲竟然会这样不容易。

youdao

Michael: I didn't realize that you were so busy these days.

迈克尔：我不知道这些天你这么忙。

youdao

I didn't realize that girls shed so much hair, you know...

因为我没意识到女生掉的头发那么多。

与室友和睦相处 - SpeakingMax英语口语达人

Though at that time I didn't realize it was going to last 16 years or longer.

我还不知道它能用,16年以上。

耶鲁公开课 - 死亡课程节选

It's very easy to get caught up in one's own studies here; and even I freshman year, dove into a world very much familiar to me-- a world that I did like but I just didn't realize that there were in fact worlds that I loved well beyond my domain of familiarity.

在这里，你们会很容易陷入封闭学习的误区;,我上大一的时候，学习的是自己熟悉的专业领域,我很喜欢那个专业但却没有意识到,我对其他领域的爱好,早已超过了我对本专业的爱好。

哈佛公开课 - 计算机科学课程节选

Like, we - I was hungry and I was always so involved, I didn't realize that.

NPR: Child Hunger: Nutritious Food Tough To Afford

Mr. TYSON RUSSUM(ph) (Former Employee, Ameriquest): I didn't really realize that until somebody called up and threatened to come up and shoot us all in the head.

NPR: Former Ameriquest Workers Tell of Deception

So, one of the things that I didn't realize, as I was talking to Maria -- I know that the resources here are pretty extensive for a health center.

WHITEHOUSE: Roundtable with the First Lady and Mary's Center Teen Program | The White House