英文關鍵字
business
call
caller
communicate
communication
concept
connect
connection
contact
conversation
dial
dialing
electronics
end
equipment
figures
finger
get
hand
handset
hold
male
man
message
network
nobody
number
objects
office
phone
plastic
press
receiver
ringing
room
service
single
table
telecommunication
telephone
typing
white
wired
workplace