12_vowel : 모음 (vowel)
춘어 기본모음표
고저
전후
원순
음소
high
front
unrounded
i
high
back
unrounded
ɯ
high
back
rounded
u
high mid
front
unrounded
e
high mid
back
rounded
o
low mid
front
unrounded
ɛ
low mid
back
rounded
ɔ
low
front
unrounded
a