translation.en: She'd just been involved in an episode where a parent had threatened to sue the school because she lowered the grade of the student by 10 percent when he turned the paper in late.
translation.zh: 她刚刚卷入一场 家长威胁要控告学校的纠纷中 是因为她给一位学生降低了10%的分数， 因为他不按时交卷。