英文關鍵字
teacher
student
portrait
face
woman
closeup
academic
learn
knowledge
girl
learner
teaching
lesson
educated
smiling
school
studying
youth
college
coach
pretty
chalkboard
tech
education
tutor
young
learning
think
cheerful
study
clever
day
university
caucasian
concept
class
teach
smile
female
educational
happy
thinking
successful