单词	audiovisuals
释义	audiovisuals plural noun au·​dio·​vi·​su·​als ˌȯ-dē-(ˌ)ō-ˈvi-zhə-wəlz  -zhəlz, -zhü(-ə)lz : instructional materials (such as DVDs) that make use of both hearing and sight Word History Etymology noun derivative of audiovisual First Known Use 1948, in the meaning defined above
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