Me? éi？ Me? èi？
uī？ uí？ uǐ？ Ui
āo？ áo？ ﹣o？ ào
You? óu？ ﹣u？ you
Me? ú？ iǔ？ one
If there is an A, find an A first. If there is no A, find an O E. If there is both an A and an O in the vowel ao, the tone is marked on the head of A; If there is no a in ei, look for e, so the tone is marked on the head of E-ě i; If it is in-Ⅱ U, it is marked on the head of O-U. (2) ②i u is marked at the back, such as the meta-phonetic symbols I U and ui, and the tones are marked above the latter one, such as I ǐ and uǐ.
Extended data:
Pronunciation characteristics of compound vowels;
When (1) is pronounced, the mouth, tongue position and lip shape change. This movement process of tongue position is called "dynamic process", which is a sliding and gradual process, not a jumping process. Three vowels are formed by the zigzag movement of the tongue, and the sliding direction is changed once in the middle, and three vowels, such as iao and uei, are recorded as representatives.
(2) The vowels of compound vowels must be read as a whole without interruption.
(3) Several vowels have a main vowel and a secondary vowel. A vowel with big mouth, loud voice and clear pronunciation is called the main vowel, also called "rhyme belly". The vowels before and after the main vowel sound light, short and fuzzy, which are called "rhyme head" and "rhyme tail" respectively. According to the position of the main vowel, it can be divided into three types: pre-polyphony, alto-polyphony and post-polyphony.
Mandarin has thirteen vowels, nine diphthongs: ai, ei, ao, ou, ia, ie, ua, uo, üe, and four triplets: iao, iou, uai and uei. Diphthongs can be divided into pre-voiced vowels and post-voiced vowels, and triplet vowels are middle voiced vowels.
References:
Baidu encyclopedia-vowels