1. For Chinese characters with the radical "Zhu", the initials are all upturned "zh" and the finals are all "U"

2. The initial consonants of Chinese characters with the root of "main" are all "zh" with a warped tongue, and the vowels are all "U".

3. In addition, the initials of Chinese characters on the root of "Shang" are all "sh" with a warped tongue, and the finals are all "ang" with a nasal sound.

4. In Chinese characters with the radical of "Cheng", the initial consonant is "ch" with upturned tongue, and the final consonant is "eng" with retronasal sound.

5. For Chinese characters with "Zhong" as the radical, the initials are all upturned "zh" and the finals are all nasal "ong".

Time is tight, please refer to it first ~ it may not be standard ~