在那里，主人骄傲地向他展示一抽屉的元音变音符号。

There he was proudly shown a drawer of umlauts.

youdao

长音一个发音符号，置于元音之上，表示长音或发音中的音值，如？在。

A diacritical mark placed above a vowel to indicate a LONG. sound or phonetic value in pronunciation, such as ? In the word make.

youdao

唯一的标音符号是“、”，这个符号在两个音节以上的词的重音落在最后的元音上时使用（città；

The only written accent is the grave, which is used when-ever a word of more than one syllable stresses the final vowel (città—city).

youdao

I think I mentioned to you that the Greeks improved upon it and made it a true alphabet by taking some signs that they didn't need for their own language by turning them into vowel sounds.

我想我向你们提到过希腊人将这种字母表改良,并使其成为真正的字母表,他们把一些并不需要的符号,变成元音使用

耶鲁公开课 - 古希腊历史简介课程节选