Definition
A particular theory, topic, or subject that one finds especially interesting or a thing or subject that one finds particularly annoying or dislike.
特别喜爱的理论、话题或特别厌恶的事物等。
Her pet theory is about quantum physics.
她特别喜爱的理论是关于量子物理学的。
Politics is one of John's pet subjects to discuss.
政治是约翰特别喜欢讨论的话题之一。
My pet hate is when people use their mobile phones while driving.
我最讨厌的事情就是人们在开车时使用手机。