pet subject

subject that obsesses one; hobby-horse 爱讲的话题: Once he starts talking about censorship you can't stop him it's his pet subject. 他一谈起新闻检查一类的事, 你就别想让他停--那是他最爱讲的话题.

perversity, pervert, peseta, pesky, peso, pessary, pessimism, pessimist, pessimistic, pessimistically, pest, pest control, pester, pesticide, pestilence, pestilent, pestle, pet, pet name, pet shop, petal, petalled (US petaled), petard, peter, petit bourgeois, petite, petition, petitioner, petrel, petrifaction, petrify, petro-, petrochemical, petrodollar, petroglyph, petrography, petrol, petrol bomb, petrol fumes, petrol tank,