Cách sử dụng
To "harp on" means to talk about something repeatedly, often in a way that is annoying or tedious. It is usually used to describe someone who keeps bringing up the same topic or issue over and over again, even if others are not interested in discussing it any further. For example, "My boss always harps on about the importance of punctuality." or "I wish my friend wouldn't harp on about her ex-boyfriend all the time."