很遗憾，我辜负了你的期望。

I'm sorry to disappoint your expectation.

youdao

可是啊，妈妈，为什么你要说你辜负了我？

Why, Mama, why did you feel that you failed me?

youdao

我希望这给了你自信可以尝试一下，有那种能力至少不会被结果辜负。

I hope this has given you the confidence to give it a shot, and the ability to at least not be mortified with the results!

youdao

If my advice is lost in the wind and you do not do as I wish, I do not recognize you as my son."

如果你辜负了我对你的期望,胆敢把我的话当耳边风,我就绝不认你这个儿子"

耶鲁公开课 - 欧洲文明课程节选