How to pronounce "O" in Chinese Pinyin?

O (Oh) has a round mouth, a slightly backward tongue, and a slightly upturned back (reading O is not the sound of ao or ou).

Pronunciation of other single vowels: a (ah) has a wide mouth, the lowest tongue position, and the back of the tongue is slightly raised. E (Goose) has a flat mouth, and its tongue position is roughly the same as that of O, except that its mouth is spread to both sides. I (clothing) teeth are arranged neatly, and the mouth shape is flat. The tip of the tongue touches the back of the lower teeth, making the front of the tongue convex.

When pronouncing, the mouth is half closed, the lips are round, the tongue is retracted, the back of the tongue surface is slightly raised, and the vocal cords vibrate after the tip of the tongue is placed under the gum. The soft palate rises, closing the nasal passages.

Example of pronunciation: uncle and mother-in-law uncle silently splash ink on the film bómó steamed bread mómo.