英文關鍵字
antique
background
book
books
business
closeup
college
concept
cover
data
design
desktop
dictionary
educate
education
educational
encyclopedia
expertise
film
glasses
information
intelligence
knowledge
learn
library
literature
modern
object
office
old
open
page
pages
paper
read
school
science
shot
smooth
spectacles
stack
story
student
study
studying
style
text
textbook
tracking
traditional
university
vintage
vision
white
wisdom
with
writing