| 单词 | broadcast transmitter |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔microphone〕An instrument that converts sound waves into an electric current, usually fed into an amplifier, a recorder, or a broadcast transmitter.扩音器,麦克风,话筒:将声波转变成电流的工具,通常接至扩音器,录音机或广播发射机上美国传统 |

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