However, due to the stress problem, the word "Feng" in the southern dialect still retains some round-lipped vowels in the middle ancient Chinese after the lip initials. These round-lipped vowels later lost their round-lipped features in some northern dialects, so the word "Feng" in the southern dialect is pronounced as fong.
Formula that initials and finals can't be put together
1, e cannot be spelled with b, f, p, j, q, x, w, and the initial letter b is spelled with a single vowel, and the 1-4 sounds of ba, bo, bi and bu are spelled together to form a syllable word. The initial f is spelled with a single vowel, and the 1-4 sounds of fa, fo and fu are spelled together to form syllable words.
2.ü can't be spelled with b, d, f, π, m, k, t, p.
I can't spell with f, π and K.
4.O can't be spelled with G, K, N and T, and N and O can't be spelled directly. You should add an intermediary U in the middle. Nuo is a three-syllable festival, also known as phonetic intermediary.