umlaut mark带变元音符号
e Umlaut蒸汽;偷窃
ein Umlaut一种变音
i-umlaut元音变音
N-COUNT（可数名词） An umlaut is a symbol that is written over vowels in German and some other languages to indicate the way in which they should be pronounced. For example, the word "für" has an umlaut over the "u." 曲音符号; 日耳曼语系中用于表示元音的不同发音方式