one minute speech

你改成一句话演讲就好了

主要是女老师都去教中小学去了所以大学里男老师多

Beacuse there is a lot of pretty girls in college.

Because middle school student is more naughty ，so they need patient teachers,and women usually have such patience.And in college,students will like the teacher who has sense of humour,and maybe men-theacher can do it better.
不知道语法对不对，仅供参考。