英文關鍵字
accounting
action
cell
cellphone
cellular
check
checkbook
chroma
chrome
closeup
coffee
computer
connection
credit
debt
digital
dragging
female
gestures
gesturing
hand
home
internet
key
mobile
office
palmtop
phone
pinching
portable
scroll
smartphone
tapping
teaching
tossing
touchpad
touchscreen
white
woman