英文關鍵字
accept
adult
advertise
agree
agreement
approval
arm
background
bad
business
chroma
closeup
communication
concept
disagree
disapproval
dislike
down
fail
failure
feedback
female
finger
fingers
gesture
gesturing
girl
green
hand
human
isolated
key
like
negative
person
positive
red
rejection
screen
showing
sign
signal
symbol
thumb
thumbsdown
unhappy
woman