谢谢你老师，你为我们付出了很多，没关系，我们会用成绩来回报你的】】】用英语翻译

Thank you,my dear teacher,and we will certainly repay you with our performance

Thanks a lot,my dear teacher.You have pay much for us and we will return our great performances to you.

Thank your teacher, you have paid a lot of for us, it doesn't matter, we will reciprocate you with achievement

I appreciate to you, my teacher, for what a great deal of time and effort you have put into us. Don't worry, since our achievement will be the best reciprocation.
没关系 千万不能直译 那是外国人对道歉的回应方式