求一篇保证书,保证以后努力学习的,还有以前成绩不好是因为不努力,尽量长一点（要中英文的,语法词语不

求一篇保证书,保证以后努力学习的,还有以前成绩不好是因为不努力,尽量长一点（要中英文的,语法词语不
能错）

They think a lot, but also realize that they committed a very serious mistake, I know, cause so much damage, I should have for their own pay for the mistakes, I am willing to take even the responsibility can not afford, especially for education in universities, the main responsibility in this error should not shirk its.
I sincerely accept criticism, and is willing to accept the deal given by the school.
Sorry, the teacher! I made a serious question of principle. I know, my teacher for committing suicide is also very angry. I also know that, for students, not violating rules, no violation of discipline, do their own thing is a basic responsibility, but also the most basic obligations. But even the most basic didn't do. Now, a mistake, I deeply regret. I'll take this incident as a mirror and discipline canvassed often, their criticism and education, and consciously accept supervision. I want to know shame and alert, know shame and forge ahead, to remedy the situation of shame as a driving force, to study hard.
I have to go through this incident, to raise awareness of my thoughts, and strengthen accountability measures. I still want to study hard, learning to me is the most important, the future survival, employment is very important. I am very small, I still have the ability to fight