英文關鍵字
active
activity
adult
adults
aged
alone
bad
call
caucasian
cellphone
communication
concentration
crisis
depression
disappointed
disturbing
domestic
elderly
focus
glasses
grandfather
home
hopeless
leisure
life
lifestyle
listening
looking
male
man
media
message
mobile
negative
news
old
only
pension
pensioner
phone
portrait
problem
reads
retired
retirement
sad
screen
senior
seniors
serious
smart
smartphone
social
stress
talk
technology
telephone
test
thinking
unhappy
upset
userselective
using
wireless
years