英文關鍵字
american
articulation
britain
close
education
english
how
instructor
learning
lips
macro
phonetics
pronunciation
sound
speeking
study
teacher
teeth
to
tutor
up
woman
英文關鍵字
american
articulation
britain
close
education
english
how
instructor
learning
lips
macro
phonetics
pronunciation
sound
speeking
study
teacher
teeth
to
tutor
up
woman