剑桥词典a mark put over a vowel in some languages , such as German , to show that the pronunciation of the vowel is changed （德语等语言中表示元音发音发生变化的）变音符 The German word "Gebäude", which means "building ", has an umlaut over the "a". 德语词 Gebäude 意思是“建筑物”，其元音 a 字母上有一个变音符。 返回 umlaut