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。
Evidence collection and analysis for computer crimes are the focal and difficult points in investigating and cracking computer crimes.
计算机证据的提取与分析是侦办计算机犯罪案件的重点和难点。
In order to ensure the practicability of the whole design and structure, this paper analyses the focal and difficult points in combined with practice.
结合实际情况分析建设重点和难点，以使整个构思和设计更加切实可行。
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