英文關鍵字
adult
age
aged
alertness
background
beard
bright
casual
caucasian
close
closeup
communication
concept
confident
deafness
elderly
expression
finger
gesture
gesturing
gossip
hand
human
male
man
mature
mute
old
one
orange
pensioner
person
private
quiet
quite
retired
retirement
secrecy
secret
senior
shh
showing
shut
sign
silence
silent
speechless
symbol
up