英文關鍵字
contract
smart
document
legal
technology
certificate
digital
isometric
3d
agreement
bureaucracy
law
management
concept
deal
electronic
signature
web
animation
motion
popup
video
clip
dynamic
cartoon
access
accounting
authentic
smartphone
partnership
authentication
bank
business
certified
confidential
data
file
information
internet
mobile
online
paper
payment
pen
secure
sign
purple
shadow