Of, relating to, or involving both sight and sound; esp. (of educational equipment or material) using both visual images and sound in order to…
| 单词 | θ180409 |
| 释义 | society > education > teaching > means of teaching > [adjective] > of teaching aids > audio-visual aid (1) audio-visual1902 Of, relating to, or involving both sight and sound; esp. (of educational equipment or material) using both visual images and sound in order to… |
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