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1.The lecture was primarily audiovisual, with the speaker using a projector to display images and videos.
讲座主要是视听的，演讲者使用投影仪来展示图片和视频。
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2.The company's website provides audiovisual materials for employees to learn about their products and services.
公司的网站提供视听材料供员工了解他们的产品和服务。
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3. The film is narrated by an actor who also provides audiovisual explanations for the audience.
这部电影由一位演员解说，同时也为观众提供视听解释。