以前，我不想帮助同学，但是我现在改变了。考试前我遇到一题不会的题，就去

以前，我不想帮助同学，但是我现在改变了。
考试前我遇到一题不会的题，就去问同学，他告诉了我。从那次经历，我感觉到帮助别人就是在帮助自己。

結果 (英文) 1:

Previously, I did not want to help students, but now I have changed.
I encountered a problem before the exam will not be the problem, ask the students, he told me. From that experience, I feel that helping others to help themselves.

結果 (英文) 2:

Previously, I don't want to help you, but now I changed. I encountered a problem no problem
before exams, ask the students, he told me. From this experience, I feel that to help others is to help ourselves.

結果 (英文) 3:

Before, I didn't want to help students, but now I have changed.
I met no one questions before the exam, ask a classmate, he told me. From that experience, I feel that helping others is helping yourself.