semi-vowel,semivowel

phonetic symbol(48个) vowels (20个) phonetic symbols semivowels
pronunciation skills- consonants part 12 the two semi-vowels -w
bilabial semi-vowel refers to the sou
liquids / retroflex:流音 nasals 鼻音 glides滑音 ( semivowel) [p]
vowel (1), semivowel (2), fricative (3), plosive (4), nasal (5)