英文關鍵字
abc
alphabet
background
basic
black
blackboard
board
chalk
chalkboard
class
classroom
college
concept
drawing
education
educational
educator
elementary
elementaryschool
english
female
hand
handwriting
highschool
kindergarten
language
learn
lesson
letters
message
preschool
primary
reading
school
secondary
showing
sign
student
study
studying
symbol
teacher
teaching
text
texture
university
used
word
write
young