英语词汇“visual aid”是什么意思，“visual aid”的读音、用法及例句翻译-烛光网

词汇	visual aid
释义	visual aidn.（名词） An instructional aid, such as a scale model, filmstrip, or videotape, that presents information visually.直观教具：一种以视觉形式呈现出信息的教学辅助，如比例模型、幻灯片或录相等
随便看	distress signal distrest distributaries distributary distribute distributed distributer distributes distributing distribution distributions distributive distributive education distributives distributor distributors district district attorney district court districted districting District of Columbia districts distrust distrustful

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