英文關鍵字
adult
blue
brainstorming
bulb
business
caucasian
chalk
chalkboard
choice
concept
concepts
contemplation
creativity
drawing
drawn
expression
facial
front
good
got
human
idea
imagination
innovation
inspiration
lamp
light
lightbulb
male
mark
men
muse
new
one
patent
people
power
question
sign
sketch
sketching
solution
solved
symbol
thinking