英文關鍵字
answer
asking
baby
blackboard
board
boy
career
caucasian
chalk
chalkboard
child
childhood
class
classroom
clever
concept
confusion
cute
decision
desk
doubt
education
egghead
elementary
expression
first
glasses
grader
homework
idea
incertitude
indecision
intelligence
intelligent
kid
learn
learning
lecture
lesson
mark
marks
old
preschool
quarantine
question
school
schoolboy
sign
studying
symbol
think
topic
work
writes
years
young