我知道我让你失望了，不是吗？

I know I let you down, didn't I?

youdao

你可能说，“妈妈，爸爸，我知道我让你们失望了。”

You might say, "Mom and Dad, I know I've disappointed you."

youdao

你太让我失望了。你明知道不该干！我一会儿要给你妈妈打电话。

I'm so disappointed in you. You know better than that. I'm going to have to call your mother later.

youdao