If you say that someone is in disgrace, you are emphasizing that other people disapprove of them and do not respect them because of something that they have done.
His vice president also had to resign in disgrace.
他的副总统也只得不光彩地辞职。
If you say that something is a disgrace, you are emphasizing that it is very bad or wrong, and that you find it completely unacceptable.
The way the sales were handled was a complete disgrace.
所采取的销售方式丢尽了人。
You say that someone is a disgrace to someone else when you want to emphasize that their behaviour causes the other person to feel ashamed.
Republican leaders called him a disgrace to the party.
共和党的领导人称他为该党的耻辱。
disgraces , disgracing , disgraced
If you say that someone disgraces someone else, you are emphasizing that their behaviour causes the other person to feel ashamed.
I have disgraced my family's name.
我玷污了家族的名声。