Textbooks are the main way to achieve course objectives, but also by virtue of the most direct teaching activities, to some extent can be said that the textbook is the core of the teaching materials.
教科书是达成课程目标的主要凭借，也是教学活动最直接的凭借，从某种程度上可以说，教科书在教学资源中居于核心地位。
The textbook, the resource of learning and teaching, used by students and teachers, is basically designed to attain teaching objectives.
教材是学生学习和教师教学的资源和工具，是达到教学目标、发挥教育成效的基础。
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