英文關鍵字
author
background
black
business
button
concept
convention
copyright
copyrighting
creator
design
duplication
empty
flat
html
icon
idea
identification
intellectual
isolated
job
label
law
lawyer
legal
letter
mark
material
owner
patent
property
protect
protection
recording
registration
rights
sign
site
symbol
term
trade
trademark
transparent
unauthorized
unicode
web
work