我父亲的一位朋友One of my father's friends 或者a friend of my father 's[例句]我父亲的一位朋友,一个成功的商人,全身心投入到他的工作中。A successful businessman, one of my father's friends, devoted himseff to his business.
我父亲的一位朋友用英语:A friend of my father
a friend of my father's