Ong: When pronouncing, the O sound is pronounced first, the base of the tongue retracts against the soft palate, the tongue surface protrudes, the lips are round, and the nasal cavity resonates into a sound.
Monovowel vowel: A vowel composed of vowels is called a vowel, also called a vowel. The pronunciation characteristics of vowels in single vowels are consistent mouth shape and tongue position from beginning to end. There are ten vowels in Mandarin: A, O, E, Mi, I, U, ü, -i (front), -i (back) and er.
Extended data:
Ong belongs to the postnasal vowel in Chinese, ong[u? When pronouncing, the initial vowel is the vowel of the back high round lip u[u], but slightly lower than the tongue position of U, the tip of the tongue leaves the back of the lower teeth, the tongue retracts, the back of the tongue bulges, the soft palate lifts, and the nasal passage closes. Lips are always round.
The vowel of ong, which is composed of one vowel, is called monophthong, also called monophthong. The pronunciation characteristics of vowels in single vowels are consistent mouth shape and tongue position from beginning to end. There are ten vowels in Mandarin: A, O, E, Mi, I, U, ü, -i (front), -i (back) and er.
Baidu encyclopedia-post-nasal sound