once students found cheating
There are several reasons, cheating. Some students want to get good grades no effort. Secondly, some are under great pressure and they worry will fail in the exam. Once students found cheating, the teachers should punish severely harm of cheating and explained.
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once students found cheating
一旦学生发现作弊
以上为机器翻译结果，长、整句建议使用 人工翻译 。