英文關鍵字
book
background
education
literature
library
read
knowledge
open
page
paper
study
ancient
information
old
school
textbook
text
vintage
wisdom
black
cover
closeup
concept
dictionary
hand
history
isolated
learn
literacy
object
retro
student
university
abstract
antique
blank
business
caucasian
document
design
dark
historic
human
imagination
learning
letters
literary
man
macro
male