英文關鍵字
approval
book
boy
casual
caucasian
celebrating
cheerful
class
classmates
classroom
college
education
emotion
enjoy
exam
excited
expression
friend
friendship
fun
gesture
group
happiness
happy
joy
joyful
laptop
lifestyle
male
man
optimism
passing
positive
school
showing
sitting
smiling
student
success
successful
table
team
teenager
three
together
triumph
university
young
youth