For example, I was part of a student TV station that broadcast news bulletins around the campus, and during an appointment which was running very late, I said, "I'm sorry, doctor, I've got to go.
Por exemplo, eu pertencia a um  canal de televisão de estudantes que divulgava notícias pela universidade, e durante uma consulta que estava muito atrasada, eu disse: “Desculpe doutor, mas tenho de ir."