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1. The teaching machine is designed to helpstudents learn more effectively.
教学机器旨在帮助学生更有效地学习。
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2. This teaching machine hasa variety of functions, including audio andvideo recording.
这个教学机器具有多种功能，包括音频和视频录制。
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3. The teacherused the teaching machine to explain complex conceptsin a clear and concise manner.
老师使用教学机器以清晰简洁的方式解释了复杂的概念。