英文關鍵字
active
aged
app
browse
browsing
call
cellphone
chatting
citizen
close
communication
connected
connection
cyberspace
depth
device
digital
elder
elderly
electronic
field
focus
gadget
hand
holding
internet
launches
learn
learning
life
lifestyle
man
mans
media
message
messaging
mobile
network
old
online
pensioner
person
phone
retired
retirement
selective
senior
shallow
smart
smartphone
social
surfing
teaching
technology
telephone
use
uses
using
vacation
wrinkle
wrinkled