I failed the first public exam because of poor interview. Later, when preparing for the exam the next year, I signed up for the interview class of nitrogen introductory education. I still remember that on the first day of class, the teacher told everyone at the beginning that I should let the examiner see my confidence when I entered the examination room, even if I made a mistake. I should dare to see the examiner. I gained a lot from a class, and after some simulation training, I finally passed the interview and became a civil servant as I wished.