英文關鍵字
adult
advertise
arm
background
black
calculate
child
chroma
click
communicating
communication
conceptual
deaf
deafness
disability
disabled
finger
fingers
fist
five
four
fourth
garden
gesture
gestures
gesturing
index
isolated
key
kinder
language
math
mathematics
number
outstretched
peace
reach
second
student
system
third
three
thumb
toddler