If time and place allow, consider and prepare audio-visual aids.
如果时间和地点允许的话，考虑并准备好视听教具。
Check for availability and visibility if you are using audio or visual AIDS.
如果您使用视听教具的话，您可以检查一下可用性和可视性。
You also should take two three-credit courses in the Education Dept. I suggest Educational Psychology and Audio-visual Methods and Aids.
你还应在教育系学两门三个学分的课程。我建议你学教育心理学和视听法及视听设备。
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