A teacher deserves wide latitude in selecting the method of grading that best promotes learning in her classroom; that is, after all, the prime function of grades.
在选择最能促进课堂学习的评分方法时，教师应具有很大的自由度；毕竟，这是成绩的主要用途。
By adopting the methods of experimental research and educational investigation, the teacher has made a two-year practical research, verifying the function and effect of this mode.
作者采用了实验研究法、教育调查法进行了两年的实践研究，验证了该模式的作用和有效性。
It is a task every teacher faces about how to bring the function of computers into play better, and to improve the effect of teaching.
如何更好地发挥计算机的功能，提高教学效果，是每一位教师面临的课题。
A college library can play its function in three respects: to liven the atmosphere of learning, to better the materials collecting, to be a good teacher and a devoted friend as well.
师专图书馆要从三个方面发挥其教育职能：学习氛围，优化资源，良师益友。
Teacher must be home between the hours of 8 P. M. and 6 A. M. unless in attendance at a school function.
晚上八点到早上六点之间，老师必须要待在家里，除非有特别的学校活动。
Teacher must be home between the hours of 8 P. M. and 6 A. M. unless in attendance at a school function.
晚上八点到早上六点之间，老师必须要待在家里，除非有特别的学校活动。
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