英文關鍵字
active
activity
adult
aged
call
caucasian
chat
chatting
communicates
communication
connection
contract
device
dialing
dials
digital
domestic
elderly
ethnicity
focus
happiness
holding
home
information
internet
leisure
life
lifestyle
lifestyles
looking
make
man
media
men
message
messaging
messengers
mobile
number
old
pensioner
people
phone
portable
retired
retirement
room
selective
senior
seniors
serious
smart
smartphone
social
talking
technology
text
using
video
web
wireless
writes
years