If someone is ashamed, they feel embarrassed or guilty because of something they do or they have done, or because of their appearance.
I felt incredibly ashamed of myself for getting so angry.
我为自己发了这么大的脾气而感到极为惭愧。
If you are ashamed of someone, you feel embarrassed to be connected with them, often because of their appearance or because you disapprove of something they have done.
I've never told this to anyone, but it's true, I was terribly ashamed of my mum.
我从未告诉过任何人,但这是真的,我特别以自己的母亲为耻。