Uiiu Movies

Rhyme about the difference between Iu and ui: Pinyin ui means u and i can be pronounced faster. Pinyin iu means i and u are pronounced faster. In terms of pronunciation: The pronunciation of iu (Excellent) starts with "i" and ends with "u". The mouth shape slides from "i" to "u", which naturally forms the sound of iu (Excellent). i — u →.