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他們把鋼琴的音調(diào)升高到音樂會的高音標(biāo)準(zhǔn).They keyed a piano up to concert pitch.這架鋼琴的音調(diào)不準(zhǔn).The piano is out of tune.“請起立”，她用洪亮的音調(diào)說。"Stand up, please" she said in a orotund tone....