英文關鍵字
android
answer
black
business
call
cell
cellphone
closeup
communication
connection
conversation
device
dialing
digital
display
equipment
finger
gadget
hand
incoming
indication
indoors
interface
key
macro
male
mobile
modern
nobody
object
outgoing
people
person
phone
receiving
request
ringing
screen
smart
smartphone
table
technology
telephone
touch
touchscreen
using