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