英文關鍵字
adult
adults
age
aged
aging
alone
attentively
busy
call
caucasian
cellphone
chat
close
communicates
communication
connection
conversation
dialogue
domestic
elderly
ethnicity
face
focus
gadget
granddad
grey
haired
his
home
interlocutor
leisure
life
listens
man
mature
men
mobile
old
one
only
pensioner
person
phone
process
relatives
retirement
selective
senior
serious
smart
smartphone
speak
speech
take
talking
telephone
telephony
tell
using
while
wrinkle
wrinkled