单词学习：free variation 语言学/语音学
free variation
/ˌfriː ˌveəriˈeɪʃən/
自由变异；自由变体
In phonetics, Gu Laoshi explained that the two pronunciations of the word 'either' are in free variation, meaning both are acceptable without changing the meaning.
在语音学中，顾老师解释说单词'either'的两种发音属于自由变异，这意味着两种发音都可以接受，且不改变词义。
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