忠誠
20s
30s
academic
american
class
classroom
cognition
college
community
country
course
desk
education
emotion
european
expression
female
flag
foreign
group
hold
identity
indoor
information
interaction
international
italian
knowledge
language
learn
lesson
mature
modern
national
patriot
showing
social
spanish
students
study
symbol
teacher
teenager
united
university
usa
woman
youth