短语词组短语TSPS Busy Verification Tone 占线确认音Busy Verification Tone 占线确认音;占线证实音busy back tone 忙音;蜂音group busy tone [通信]群忙音;群占线音channel busy tone 信道忙音;详细翻译line busy tone 线路忙音;占线音user busy tone 用户忙音send busy tone 发送忙音 返回 busy tone