英文關鍵字
background
bibliography
book
books
closed
collection
college
concept
cover
education
group
hardcover
heap
information
institution
intelligence
knowledge
layout
learn
learning
library
literary
literature
motion
new
nobody
novel
paper
pile
publication
publishing
read
reading
research
school
science
slow
smooth
study
studying
table
teaching
text
textbook
thick
university
wisdom
wood
wooden