英文關鍵字
academic
adult
animation
book
bookcase
books
bookshelf
bookshelves
bookstore
caucasian
college
computer
design
digital
education
educational
female
holding
information
intelligence
internet
keyboard
knowledge
laptop
learning
librarian
library
literature
mathematics
mouse
no
numeric
people
reading
research
school
science
scrolling
shelf
sitting
student
study
studying
symbols
taping
technology
textbook
textbooks
tool
touching
university
using
web
website
woman
work
young