Dear Xiao Wang: I have received and read your letter, in which you mentioned that you want to lose weight by dieting . It is only natival that young girls at your age hope to look beautiful . However , in my opinion ,health is more important that beauty. For a student , studying is the first thing to consider while appearance is the second . So do not let other's opinions affect your nprmal life . However ,if you dowant to lose weight ,it's a good idea to do it by getting more esercise and changing unhealthy eating habits .The most important thing is that you keep a healthy state of mind,as it will help with your studies,and will also help you overcame diffculties in dieting. I hope my advice will be helpful to you and I'm looking forward to your next letter. Yours, Li Hua