名词
中文翻译：歌唱信号
同义词：
['musical signal', 'singing note']
例句：
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1.The singer's performance was a highlight of the concert.
歌手的表演是音乐会的亮点。
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2.The singing signal is sent to the receiver by the transmitter.
唱歌的信号是由发射机发送给接收机的。
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3. The singing signal is used to indicate the beginning of a song.
唱歌的信号用来指示歌曲的开始。