run out on sb to leave someone when they are in a difficult situation – used to show disapproval抛弃〔遇到困难的人，含贬义〕:•He ran out on her when she became pregnant.她怀孕后，他就抛弃了她。ˌrun ˈout on sb(informal)to leave sb that you live with, especially when they need your help弃某人而去；抛弃某人 |