(=semivowels): [j][w] are produced with little or no obstruction of the (활음,반모음,반자음) airstream in the ... , vowel+ glide-> diphthong(이중모음)) (eg. [aw], [aj], [wa], [ju].....)Vowels: sounds with 1) the free flow ... The sounds of all languages fall into two classes: Consonants and vowelsConsonants (Table 6.4): s