英文關鍵字
academic
adult
background
beautiful
book
bookshelf
bookshop
campus
casual
caucasian
choosing
college
concentration
concept
cute
day
education
female
floor
girl
indoors
knowledge
learn
library
lifestyle
literature
people
person
read
reading
research
school
selecting
shelf
sitting
smart
smiling
space
store
student
study
studying
teenager
textbook
university
woman
young