她应着，脑海里就开始弹奏起来。
知更鸟似乎很满意，又叽叽喳喳“啾啾”地回应着她。
The robin seemed to be quite satisfied and chirped and whistled back at her.
每个按钮对应着一系列的音符；当奏乐者看着某一个按钮时就会选中它，这是因为他或她的大脑对于每一个按钮会触发一组独特的电子脉冲模式。
Each corresponds to a series of musical notes; one is selected when the player focuses on it, since his or her brain triggers a unique pattern of electrical impulses for each button.
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