仔细聆听男低音歌手独唱的录音，你会间或听到这种噪音：每个音符都伴有一个杂音“啐”，并且这个杂音只在两个音符之间闪现。

You can sometimes hear it if you listen carefully to a recording of a bass solo, where each note is accompanied by a "PFFT" sound that disappears between the notes.

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他在键盘上弹出两个音符，一个高音和一个低音，完美地模仿出了“你好”的音调。

He played two notes on the keyboard, a high one and a low one, perfectly mimicking the intonations for "Hello."

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