元音變化 yuányīnbiànhuà vowel mutation Definitions Defs Origin Strokes Stroke Words Sentences Sents 元音变化 元音變化 yuányīnbiànhuà vowel mutation a change in vowel sound caused by its environment, such as umlaut or ablaut
元音变化 元音變化 yuányīnbiànhuà vowel mutation a change in vowel sound caused by its environment, such as umlaut or ablaut
