Reading guide: 1. Teacher and student (but not teacher-student text), the age difference is 7 years.
2. Shuang Jie did not get together or express love at the end of the whole story, so they may appear in the extra story.
3. Reject school violence and do not imitate it.
4. The whole text is fake, without any relevant professional experience, and the professional knowledge comes from the Internet. If you don't like it, don't criticize it or criticize it.
Copywriting: 25-year-old Lan Yao received the bad news that her sister Lan Ying committed suicide at school, but how could it be possible? She said she would celebrate her sister's birthday the next day.
The police hastily closed the case on the grounds that he was suicidal due to the pressure of studying, but Lan Yao didn't believe it. He vowed to find out the truth and avenge his sister.
Well, hello, classmates, I am the new math teacher, my name is Lan Yao.
Purpose: Reject school violence