concert pitch 可调整至多种演奏高音 ; 音乐会合奏调
at concert pitch 处于高效状态 ; 处于高效能的状态
speak at concert pitch 增大声音放送
He keyed the piano up to a concert pitch.
他把钢琴的音调调到了音乐会要求的音高标准。
The clear, pure light of the morning made me long for the truth in my heart, which alone could make me pure and clear as the morning, tune me up to the concert-pitch of the nature around me.
早晨的纯洁之光，使我的心渴慕真理，惟有这种仰望真理之心，能使我纯洁如早晨，使我和周围的自然交响乐和谐合拍起来。
Please key the piano up to concert pitch.
请调高钢琴的音，达到合奏的音调。
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