To concentrate in class and listen more efforts should be made before the exam preparation.
上课时要集中精力听讲，考试前更应该努力准备。
Do the preparation before, and exercises well after class, do homework without carelessness. To make good progress, is the biggest reward to the teacher.
做好课前准备，做好课后练习，认真完成家庭作业，不敷衍了事。取得良好的成绩，就是对老师最大的报答。
To give an interesting and vivid lesson of pathology, I think three steps should be done well, including preparation before class, teaching on the class and summarizing after class.
讲授一堂生动精彩的病理学课，应做好课前准备、课堂教学、课后总结三个方面的工作。
Conventional moral education needs preparation of both teaching materials and students before class, yet the result is far from satisfying.
传统德育教学教师课前要备教材，备学生，但是教学效果很难令人满意。
Conventional moral education needs preparation of both teaching materials and students before class, yet the result is far from satisfying.
传统德育教学教师课前要备教材，备学生，但是教学效果很难令人满意。
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