Examples
wǒ我fù qīn父亲shì是yì一míng名wài kē外科zhuān jiā专家。
我父亲是一名外科专家。
My father is an expert surgeon.
他是一个优秀的脑外科医生。
He's an excellent brain surgeon.
他的圈子里有两人是医生，一个是外科医生，另一个是眼科医生。
There are two doctors in his circle of friends, a surgeon and an ophthalmologist.