Subsequent Teacher Sun had not looked at the note for a long time. Mainly due to psychological avoidance, a desire to avoid the pain, she didn’t want to admit that she had caused a student's death. Now, she was reading it seriously. There were still typos in the middle, crosses were marked, and then corrections were written beside them. She had forgotten about these details from before. Sun Ning felt a discomfort that was hard to describe. She remembered those times when she would…