look down one's nose at
feel scorn at； think of as worthless 鄙视；瞧不起
He looks down his nose at his classmates'interest in Jazz．他鄙视班上的同学醉心于爵士乐。
Jerry was the athlete who looked down his nose at the weak students．杰里是位运动员，他看不起身体不强壮的学生。
Why do you always look down your nose at people who aren't dreesed as smartly as you？你为什么总要看不起那些穿着不如你潇洒的人呢？