英文關鍵字
abstract
animation2
answer
background
black
brain
business
concentration
concept
contrast
creative
creativity
discovery
education
element
face
gear
graphic
head
human
idea
illustration
image
imagination
innovation
inspiration
intellect
intelligence
invention
knowledge
machine
male
man
mechanism
mind
outline
people
person
problem
profile
question
sign
silhouette
solution
solve
strategy
symbol
technology
think
vector
wheel