英文關鍵字
accessibility
alphabet
blind
blindness
braille
closeup
communicate
defectology
describing
disabled
dots
education
finger
font
hand
health
help
impaired
impairment
international
knowledge
language
learn
learning
letter
navigate
plate
point
read
reading
relief
script
sense
senses
sight
sightless
sign
skills
study
studying
symbol
system
tactile
text
touch
touching
visual
visually
white
written