释怀的英文dismiss from one's mind 缩写DFOM。
释怀的英文还有好多种，根据语境不同而不同，如to be relieved，to release from the heart ，to be fotggten，to get over sth.，to stop thinking/worrying about sth.，to not be hung up over sth等
例：唯一不能让我释怀的是我的女儿
The only thing I can't get over with is thinking about my daughter
同事意见不合时要能轻易释怀
You should not be hung up over your differences with colleagues at work
