vowel shift rule

例句：

1. 1.This vowel shift rule is a common mistake in English pronunciation.
   这个元音移位规则是英语发音中常见的错误。
2. 2. The vowel shift rule has been widely used in phonetics research.
   元音移位规则在语音学研究中被广泛应用。
3. 3. The vowel shift rule can help us understand the relationship between vowels and consonants.
   元音移位规则可以帮助我们理解元音和辅音之间的关系。