The system of holding back is often implemented to ensure students are academically ready for the next grade level.
留级制度通常被实施以确保学生在下一个年级水平上学术上做好准备。
Many educators debate the effectiveness of the system of holding back as a means of improving student performance.
许多教育工作者辩论留级制度作为提高学生表现手段的有效性。