名词
中文翻译：元音过渡
同义词：
['vowel change', 'vowel transition例句：1. The vowel gradation in the word "apple" is a key factor in understanding English pronunciation.（“苹果”中的元音过渡是理解英语发音的关键因素。）']
例句：
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1. The vowel gradation in the word "apple" is a key factor in understanding English pronunciation.
“苹果”中的元音过渡是理解英语发音的关键因素。
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2.Vowel gradation plays an important role in phonetics and speech production.
元音过渡在语音学和发音生产中起着重要作用。
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3. In this study, we analyzed the vowel gradation patterns in different languages to compare their similarities and differences.
在这项研究中，我们分析了不同语言的元音过渡模式，以比较它们的相似性和差异性。