it's/that's not my problemspokenDON'T CARE used to say rudely that you are not responsible for dealing with a particular problem and are not willing to help 那不是我的问题 〔用于表示不负责某事而且不愿意提供帮助〕 ‘We’ve got a serious staffing shortage.’ ‘That’s not my problem.’ “我们人员严重短缺。”“那不是我的问题。”
it’s/that’s not my problem• It's not my problem if she won't listen to reason.
→ it’s/that’s not my problem at problem(5)