| 词汇 | visual aid |
| 释义 | ☞ visualaidˌvisual ˈaidnoun [c] a picture, film, map, etc that helps a student to learn sth 直观教具，视觉辅助教材 visual aid /ˌ··· ˈ·/n [c]something such as a picture, film etc that is used to help people learn 直观［视觉］教具〈如图片、电影等〉 |
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