I used many audiovisual aids to keep my students awake.
我使用许多教具使学生不睡着。
On the Classroom Teaching with Electrical Audiovisual Aids
试论课堂教学的电教化
Education With Electric Audiovisual Aids in Physics Teaching
电化教学手段在物理教学中的作用
Practice and Teaching with Audiovisual Aids in Modern Education
现代教育中的电化教学与实践
Developing the Advantages of Electrical Audiovisual Aids and Raising the Teaching Efficiency
发挥电化教学优势提高课堂效率
Audiovisual AIDS for the classroom， eg cassette recorders， video recorders， pictures， etc.
课堂视听教具。
Elementary Introduction to Teaching with Electrical Audiovisual Aids in English Class in Middle School
浅谈中学英语课电化教学
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