[usu. as modifier] sound, especially when recorded, transmitted, or reproduced
(尤指被录制、播送或复制的)音频信号;声音
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audio equipment 音响器材
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the machine can retrieve and play audio from a CD-ROM .这台机器可以从光盘只读存储器检索并播放音频信号。
"1930s: independent usage of