英文關鍵字
20s
adult
analyzing
attractive
beautiful
blue
book
bookshelf
campus
casual
caucasian
college
concentration
contemplation
creativity
education
elegant
exam
eyewear
female
girl
hair
hipster
holding
homework
information
knowledge
learning
library
literature
one
pensive
pondering
portrait
preparing
project
reading
research
school
serious
shelf
smart
student
studying
stylish
trendy
university
woman
young
youth