When I was a young girl,I dreamed of becoming a scientist like Hua Luogen in future.However,I knew very well that I could not succeed without painstaking efforts.So I studied hard in the middle school and college in order to attain my goal.After graduating from college,I found a job as a teacher.Although I was very busy with teaching,I never gave up my goal.I read a lot of books to get more knowledge.I made experiments to practise and apply what I had learnt from the books.