“unconditioned sound change”的概念、定义、翻译、参考文献-科学参考

单词	unconditioned sound change
释义	unconditioned sound change Encyclopedia 文学语音演变释 unconditioned sound change无条件音变一个音段在任何语音条件下都会发生同样的变化。通常也是特指音位性的变化。与条件音变相对。
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