The basis of his employment is coaching basketball but he also teaches mathematics.他的主要职业是当篮球教练,但也兼教数学。He was a successful basketball coach, but many people regarded him as a petty despot.他是个成功的篮球教练,但很多人视他为小霸王。He used to coach high school basketball but now he's a realtor.他以前是中学篮球教练,但现在是房地产经纪人。