1. Some students tend to overlearn the material in order to ensure good grades on exams.
一些学生倾向于过度学习课程材料，以确保考试取得好成绩。

2. It's important to strike a balance between learning and overlearning, as excessive studying can lead to burnout.
在学习和过度学习之间保持平衡很重要，因为过度的学习可能导致疲劳过度。