Its significance lies in predicting the learner's errors: the teacher can confirm focal and difficult points in teaching.
其意义就在于可以预测学习者的错误，因而教师可以确定教学的重点与难点。
Its significance lies in predicting the learner's errors: the teacher can confirm focal and difficult points in teaching.
其意义就在于可以预测学习者的错误，因而教师可以确定教学的重点与难点。
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