劍橋詞典a mark put over a vowel in some languages , such as German , to show that the pronunciation of the vowel is changed （德語(yǔ)等語(yǔ)言中表示元音發(fā)音發(fā)生變化的）變音符 The German word "Geb?ude", which means "building ", has an umlaut over the "a". 德語(yǔ)詞 Geb?ude 意思是“建筑物”，其元音 a 字母上有一個(gè)變音符。 返回 umlaut