Dear Leader/Teacher/Others: Because of my negligence and carelessness, I made a mistake and brought unnecessary trouble and pain to you and others. I should be polite and respectful in public and not attack others at will. My behavior not only does not conform to social ethics, but also does not conform to my responsibility and obligations as a citizen. I am deeply aware of my mistakes, my actions have exceeded my control, and I am deeply sorry for this. I will seriously review my actions and do my best to prevent similar mistakes from happening again. I will work hard to learn and improve myself to better adapt to the society and work environment and try my best to become an excellent employee. At the same time, I will consult other colleagues and leaders to better understand and master relevant work knowledge and skills. Once again, I sincerely apologize to you and everyone else. I hope you can forgive my mistake and give me a chance to correct my mistake and restore my dignity and confidence. Thank you!