英文關鍵字
abstract
alphabet
aspects
background
blackboard
blue
board
code
cognition
computer
concept
connections
data
design
distraction
essential
features
graphic
green
highlight
illustration
letter
letters
lines
math
matrix
natural
nonessential
object
order
paper
pattern
phenomenon
process
properties
science
seamless
symbol
technical
technology
texture
their
wallpaper
white