英语词汇“升降曲线”的翻译、意思、用法、释义-英汉汉英词典

单词	升降曲线
释义	升降曲线 shēng-jiàng qǔxiànlg.1) contour2) rising-falling contour升降曲线n.contour【语】(声调等的)升降曲线
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