Aoeiuv is the first six vowels, ***24.

Complete:

In a long process.

Vowel is a Chinese phonology term of China, which is a part of Chinese phonology except initials and tones. Formerly known as rhyme Vowels consist of three parts: the beginning (middle tone), the belly (main vowel) and the end. According to vowel structure, it can be divided into single vowel, compound vowel and nasal vowel.